The Washer,flat, cataloged under National Stock Number 5310-01-220-8705, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Clark-Reliance Llc Dba Jerguson Gage & Valve. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-220-8705 |
| Primary Part Number | P-4917 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Clark-Reliance Llc Dba Jerguson Gage & Valve |
| Status | ACTIVE |
| Overall Diameter | 2.250 INCHES NOMINAL IN |
| Material Document and Classification | P-4917-R,FSCM 74965 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL COMP 304 OVERALL |
| Hole Width Across Flats | 0.547 INCHES MINIMUM AND 0.561 INCHES MAXIMUM IN |
| Center Hole Shape Style | HEXAGON |
| Thickness | 0.062 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 |
|---|---|
| E-252 PIECE 29 | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
| P-4917 PRIMARY | Clark-Reliance Llc Dba Jerguson Gage & Valve (USA) |
NSN 5310-01-220-8705 is a Washer,flat, manufactured by Clark-Reliance Llc Dba Jerguson Gage & Valve, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-220-8705 has 2 manufacturer part numbers on file: E-252 PIECE 29 (Clark-Reliance Llc Dba Jerguson Gage & Valve), P-4917 (Clark-Reliance Llc Dba Jerguson Gage & Valve).
Key specifications for P-4917: Overall Diameter: 2.250 INCHES NOMINAL IN; Material Document and Classification: P-4917-R,FSCM 74965 MFR REF 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.