Military
Washers
Mumbai · India
Why Two Washer Worlds Genuinely Exist
The FF-W federal series exists for general government and commercial procurement — FF-W-100 flat washers, FF-W-92 lock washers, and FF-W-84 key washers cover standard clearance-fit assembly across steel, corrosion-resistant, and other material classes, using the dimensional tolerance a general federal specification allows.
The aerospace series exists for a genuinely different purpose — AN960 offers precise material flexibility matched exactly to AN/NAS bolt series, NAS620 narrows that further to fix corrosion-resistant material on the part number itself, and NAS1149’s self-describing part numbering makes it the standard for everyday general aviation MRO ordering. Neither series is simply “better” than the other; each was built for a different practical world of use.
Akbar Fasteners Pvt. Ltd. exports to over 50 countries, and our washer range spans both federal and aerospace series across steel, corrosion-resistant steel, and aluminum, verified under our ISO 9001:2015 quality system.
Where This Category Genuinely Applies
Correct Series for the Actual Context
Choosing federal vs aerospace by genuine procurement context avoids citing the wrong reference entirely.
Full Material Range Across Both Worlds
Steel, corrosion-resistant steel, and aluminum options available in both federal and aerospace series.
Precise Fit to Matching Bolt Series
Aerospace washer dimensions matched precisely to AN/NAS bolt head bearing surfaces.
Verified Dimensional Precision
Batch testing confirms genuine fit within specification across every series we manufacture.
Federal and Aerospace Washers in Detail
FF-W-100
General federal flat washer specification, Type A and Type B series, across multiple material grades.
View FF-W-100 → Federal — LockFF-W-92
Federal helical spring and tooth lock washer specification across light, regular, and heavy series.
View FF-W-92 → Federal — KeyFF-W-84
Federal key/finishing washer specification with a countersunk bearing face for finished appearance.
View FF-W-84 → Aerospace — Design ReferenceAN960
Aerospace flat washer standard with full material flexibility, matched precisely to AN/NAS bolt series.
View AN960 → Aerospace — Fixed CRESNAS620
Corrosion-resistant-only aerospace flat washer standard, removing material ambiguity from the part number.
View NAS620 → Aerospace — MRO StandardNAS1149
The most widely ordered general aviation MRO washer number, with self-describing part numbering.
View NAS1149 →Federal vs Aerospace — Quick Reference
Confirming the actual procurement context — general assembly, aerospace engineering, or MRO parts ordering — narrows the choice immediately. This table is the quick reference we use with buyers before quoting.
| Actual Need | Reference | Series |
|---|---|---|
| General federal/commercial flat washer | FF-W-100 | Federal |
| General federal lock washer | FF-W-92 | Federal |
| Aerospace design reference, material flexibility | AN960 | Aerospace |
| Aerospace, fixed corrosion-resistant material | NAS620 | Aerospace |
| General aviation MRO / parts ordering | NAS1149 | Aerospace |
Military Washer Specification Details
Materials We Manufacture In
- Carbon Steel Cadmium / Zinc Plated
- Corrosion-Resistant Steel 300 Series
- Aluminum Weight-Critical Applications
- Finish Per Corrosion Environment
How Our Washers Are Made
- Process Stamped & Precision Sized
- Series Federal / Aerospace
- Testing Dimensional Verified
- Quality Batch Sampled
Available Dimensions
- Nominal Bolt Size #2 – 1″ (Inch Series)
- Metric Equivalent Available to Drawing
- Type Flat / Lock / Key
- Custom Sizes On Request
Application Areas
Wherever a joint needs a bearing surface, spring-back locking action, or finished appearance.
Aircraft Structural Assembly
for precision joints
General Aviation MRO
self-describing ordering
Defense & Military Equipment
across all washer types
General Machine & Equipment Assembly
for standard assembly
Fuel & Hydraulic System Assembly
corrosion-resistant needs
Marine & Naval Aviation Equipment
procurement washer needs
Consumer & Furniture Hardware
for visible surfaces
General Vibration-Resistant Assembly
for vibration-prone joints
Standard Export Documentation
Prepared as standard practice for every military washer shipment.
Mill Test Certificate (MTC)
Heat number, chemical composition, and mechanical property verification for every lot.
Dimensional Inspection Report
Verification of outer diameter, inner diameter, and thickness against the ordered series tolerance.
Certificate of Conformance
Confirms the shipment matches the purchase order series/material specification in full.
Certificate of Origin (COO)
Confirms India as country of manufacture for destination customs purposes.
NABL Accredited Test Reports
Independent mechanical and dimensional testing available on request for critical applications.
Commercial Invoice & Packing List
Itemized value, Incoterm, and detailed carton/weight breakdown for customs clearance.
Internationally Recognised Standards Coverage
Related Fastener Grades & Materials
FF-W-100 Flat Washers
Our general federal flat washer specification for standard assembly.
View FF-W-100 →AN960 Flat Washers
Our aerospace design engineering reference washer standard.
View AN960 →NAS1149 Flat Washers
Our most widely ordered general aviation MRO washer standard.
View NAS1149 →NAS6603 Hex Head Bolts
Our matching precision structural bolt range for aerospace washer applications.
View NAS6603 →Federal or Aerospace —
We’ll Confirm the Right Reference
Tell us the procurement context — general assembly, aerospace design, or MRO ordering — and we’ll confirm the right washer series and quote across our full range. Akbar Fasteners Pvt. Ltd. responds within 24 hours.
Sales: +91 724 0000 733 · Support: +91 800 9315 333 · sales@akbarfasteners.in