The Washer,flat, cataloged under National Stock Number 5310-01-332-3260, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-332-3260 |
| Primary Part Number | KTP224A |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 0.750 INCHES NOMINAL IN |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Document | AS MODIFIED BY MATERIAL |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | ROUND |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.252 INCHES MINIMUM AND 0.262 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 |
|---|---|
| KTP224A PRIMARY | Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution (USA) |
| 1277-25-SS-20 | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| Reference | Meaning |
|---|---|
| LL-HQ7-0104 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
NSN 5310-01-332-3260 is a Washer,flat, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-332-3260 has 2 manufacturer part numbers on file: KTP224A (Eaton Aerospace Llc Dba Eaton Inoac Div Fluid & Electrical Distribution), 1277-25-SS-20 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).
Key specifications for KTP224A: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 0.750 INCHES NOMINAL IN; Special Test Features: SPECIAL QUALITY CONTROL TESTING; Cross-Sectional Shape Style: RECTANGULAR. 12 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.