The Washer,flat, cataloged under National Stock Number 5310-00-121-8382, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Brp Us Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-121-8382 |
| Primary Part Number | 309192 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Brp Us Inc |
| Status | ACTIVE |
| Overall Diameter | 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 430 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.323 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Thickness | 0.055 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 309192 PRIMARY | Brp Us Inc (USA) |
| Reference | Meaning |
|---|---|
| 309192 | C/1 Advisory reference — outside the item-of-supply concept Evinrude Motors Product Group of Outboard Marine Corp |
| Z309192 | 5/1 Secondary reference Zodiac Milpro Australia Pty Ltd |
| 309192 | 5/9 Secondary reference Outboard Marine Corp Johnson Motors Div |
NSN 5310-00-121-8382 is a Washer,flat, manufactured by Brp Us Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-121-8382 has 1 manufacturer part number on file: 309192 (Brp Us Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5815-00-161-5307, 5905-00-968-4600. Verify interchangeability with system specifications before substitution.
Key specifications for 309192: Overall Diameter: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 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.