The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-935-3619, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-935-3619 |
| Primary Part Number | H35-3 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Washer Outside Diameter | 0.330 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN |
| Width Across Flats | 0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Washer Thickness | 0.020 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| H35-3 | Fairchild Fasteners Uk Ltd (GBR) |
| H35-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| H35-3 | Bae Systems (operations) Ltd (GBR) |
| 6864371 | Rolls-Royce Airlines (GBR) |
| 6864371 | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| H35-3 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
| LH6214-02 | 5/9 Secondary reference Harvard Industries Inc |
| H35-3 | 5/9 Secondary reference Kaynar Microdot Aerospace |
NSN 5310-00-935-3619 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-935-3619 has 5 manufacturer part numbers on file: H35-3 (Fairchild Fasteners Uk Ltd), H35-3 (Howmet Global Fastening Systems Inc), H35-3 (Bae Systems (operations) Ltd), 6864371 (Rolls-Royce Airlines), 6864371 (Allison Transmission Inc Dba Allison Transmission, Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-191-5304. Verify interchangeability with system specifications before substitution.
Key specifications for H35-3: Overall Height: 0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Washer Outside Diameter: 0.330 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN; Width Across Flats: 0.243 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.