The Washer,flat, cataloged under National Stock Number 5310-00-111-3700, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-111-3700 |
| Primary Part Number | 73445 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Prestolite Electric Inc |
| Status | ACTIVE |
| Overall Diameter | 0.688 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | PLASTIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.505 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Thickness | 0.055 INCHES MINIMUM AND 0.069 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 |
|---|---|
| Z082073445 | Prestolite Electric Inc (USA) |
| 73445 PRIMARY | Prestolite Electric Inc (USA) |
| Reference | Meaning |
|---|---|
| 73445 | 5/9 Secondary reference Prestolite Electric Inc |
| Z082073445 | 5/9 Secondary reference Prestolite Electric Inc |
NSN 5310-00-111-3700 is a Washer,flat, manufactured by Prestolite Electric Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-111-3700 has 2 manufacturer part numbers on file: Z082073445 (Prestolite Electric Inc), 73445 (Prestolite Electric Inc).
1 possible match (shared part number, not a government interchangeability claim): 2810-00-201-1423. Verify interchangeability with system specifications before substitution.
Key specifications for 73445: Overall Diameter: 0.688 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: PLASTIC OVERALL. 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.