The Washer,flat, cataloged under National Stock Number 5310-01-417-9933, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-417-9933 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 1.772 INCHES NOMINAL IN |
| Material Document and Classification | ASTM D2000 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | SQUARE |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR OR RUBBER POLYISOPRENE SYNTHETIC CLASS IR OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.984 INCHES NOMINAL IN |
| Thickness | 0.276 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 |
| Reference | Meaning |
|---|---|
| MP10365 | 5/9 Secondary reference Imi Services Usa Inc |
| MP10365 | 3/9 Design control — primary reference Israel Military Industries Ltd Dba Taas - Israel Industries Ltd - Formerly |
| MP10365 | C/1 Advisory reference — outside the item-of-supply concept Imi Systems Ltd |
NSN 5310-01-417-9933 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-417-9933: Width Across Flats: 1.772 INCHES NOMINAL IN; Material Document and Classification: ASTM D2000 ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: SQUARE. 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.