The Washer,flat, cataloged under National Stock Number 5310-00-231-4271, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-231-4271 |
| Primary Part Number | 2R295PC55 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots |
| Status | ACTIVE |
| Overall Diameter | 1.688 INCHES NOMINAL IN |
| Material Document and Classification | HH-P-96,TY 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Minimum Tensile Strength | 2000 POUNDS PER SQUARE INCH LBS |
| Peripheral Shape Style | ROUND |
| Material | CELLULOSE OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 1.250 INCHES NOMINAL IN |
| Thickness | 0.016 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 |
|---|---|
| 2R295PC55 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| 2R301PC55 PRIMARY | Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots (USA) |
| Reference | Meaning |
|---|---|
| 490730PC55 | 3/2 Design control — primary reference U.S. Government activity |
| 1605-285PC55 | 3/2 Design control — primary reference U.S. Government activity |
| 490724PC55 | 3/2 Design control — primary reference U.S. Government activity |
| 1611-285PC55 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-231-4271 is a Washer,flat, manufactured by Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-231-4271 has 2 manufacturer part numbers on file: 2R295PC55 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots), 2R301PC55 (Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots).
Key specifications for 2R295PC55: Overall Diameter: 1.688 INCHES NOMINAL IN; Material Document and Classification: HH-P-96,TY 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Minimum Tensile Strength: 2000 POUNDS PER SQUARE INCH LBS. 9 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.