The Washer,flat, cataloged under National Stock Number 5310-01-393-0306, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-393-0306 |
| Primary Part Number | P013930306 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| Status | ACTIVE |
| Overall Diameter | 1.500 INCHES NOMINAL IN |
| Special Test Features | SPECIAL QUALITY CONTROL TESTING |
| Criticality Code Justification | ZZZY |
| Cross-Sectional Shape Style | RECTANGULAR |
| Departure From Cited Document | AS MODIFIED BY MATERIAL |
| Surface Treatment | CADMIUM AND CHROMATE 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 | 0.810 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION |
| Thickness | 0.134 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 | Y |
| Part Number | Manufacturer |
|---|---|
| P013930306 | Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA) |
| Reference | Meaning |
|---|---|
| FF-W-92 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 41E-500-450PC59 | 3/1 Design control — primary reference Fluor Marine Propulsion, Llc Dba Knolls Atomic Power Laboratory |
| P00480NRP | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| MS27183-23 | 5/9 Secondary reference Zf Industrieantriebe Witten Gmbh |
| LL-HX3-91297 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
NSN 5310-01-393-0306 is a Washer,flat, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-393-0306 has 1 manufacturer part number on file: P013930306 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).
Key specifications for P013930306: Overall Diameter: 1.500 INCHES NOMINAL IN; Special Test Features: SPECIAL QUALITY CONTROL TESTING; Criticality Code Justification: ZZZY; Cross-Sectional Shape Style: RECTANGULAR. 13 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.