The Washer,flat, cataloged under National Stock Number 5310-01-117-4958, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rexnord Industries Llc. Government technical data includes 7 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. 3 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 | 5310-01-117-4958 |
| Primary Part Number | 103071 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rexnord Industries Llc |
| Status | ACTIVE |
| Overall Diameter | 2.250 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 1020 OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.748 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN |
| Thickness | 0.125 INCHES NOMINAL 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 |
|---|---|
| 507409 PIECE-14 | Rexnord Industries Llc (USA) |
| 103071 PRIMARY | Rexnord Industries Llc (USA) |
NSN 5310-01-117-4958 is a Washer,flat, manufactured by Rexnord Industries Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-117-4958 has 2 manufacturer part numbers on file: 507409 PIECE-14 (Rexnord Industries Llc), 103071 (Rexnord Industries Llc).
3 possible matches (shared part number, not a government interchangeability claim): 5310-01-129-2564, 5310-01-216-1358, 3431-01-464-6243. Verify interchangeability with system specifications before substitution.
Key specifications for 103071: Overall Diameter: 2.250 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: NAVY SPECIAL PROJECT. 7 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.