The Washer,lock, cataloged under National Stock Number 5310-00-914-7281, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pitney Bowes Inc.. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-914-7281 |
| Primary Part Number | 52-8 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pitney Bowes Inc. |
| Status | ACTIVE |
| Heat Treatment | QUENCHED AND TEMPERED |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.236 INCHES MAXIMUM IN |
| Material Thickness | 0.031 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | A CLASS AND 2 STYLE |
| Test Data Document | 81348-FFW84 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.). |
| Hole Diameter | 0.128 INCHES MINIMUM AND 0.134 INCHES MAXIMUM 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 |
|---|---|
| 52-8 PRIMARY | Pitney Bowes Inc. (USA) |
| Reference | Meaning |
|---|---|
| FFW84 | 4/1 Identification reference U.S. Government activity |
NSN 5310-00-914-7281 is a Washer,lock, manufactured by Pitney Bowes Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-914-7281 has 1 manufacturer part number on file: 52-8 (Pitney Bowes Inc.).
Key specifications for 52-8: Heat Treatment: QUENCHED AND TEMPERED; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.236 INCHES MAXIMUM IN. 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.