The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-006-9013, 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 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-006-9013 |
| Primary Part Number | H19821-836 |
| 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 | 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Width Across Flats | 0.181 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Precious Material | SILVER |
| Temp Rating | 800.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.023 INCHES MINIMUM IN |
| Material Document and Classification | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | SILVER OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 36 |
| Material | IRON ALLOY 660 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 |
|---|---|
| BH00271-836 | Bristol Industries, Llc (USA) |
| H19821-836 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 5310PL2081612 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5310PL0150200 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| R1186P002C | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| R1186P002 | 1/2 Source control — Government-approved source U.S. Government activity |
| R1186P002C | 5/9 Secondary reference U.S. Government activity |
| H19821-836 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
NSN 5310-01-006-9013 is a Nut,self-Locking,extended Washer, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-006-9013 has 2 manufacturer part numbers on file: BH00271-836 (Bristol Industries, Llc), H19821-836 (Howmet Global Fastening Systems Inc).
Key specifications for H19821-836: Overall Height: 0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN; Washer Outside Diameter: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN; Width Across Flats: 0.181 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 15 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.