The Washer,key-Recessed, cataloged under National Stock Number 5310-00-945-6334, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-945-6334 |
| Primary Part Number | 522748 |
| Item Name | Washer,key-Recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL AMS 6350 OR STEEL AMS 6355,SILVER PLATE AMS 2410 OR SILVER PLATE AMS 2412,1.270 INCH MIN 1.290 INCH MAX ID,1.801 INCH MIN 1.829 INCH MAX OD,0.036 INCH MAX THICK,0.450 INCH MIN 0.470 INCH MAX OVERALL H,2 INTERNAL KEYS EQUALLY SPACED 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 |
|---|---|
| 522748 | Paradigm Manchester Inc. Dba Pursuit Aerospace (USA) |
| 522748 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 522748 PRIMARY | Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring (USA) |
| Reference | Meaning |
|---|---|
| 522748 | 5/9 Secondary reference Dynamic Gunver Technologies Llc |
NSN 5310-00-945-6334 is a Washer,key-Recessed, manufactured by Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-945-6334 has 3 manufacturer part numbers on file: 522748 (Paradigm Manchester Inc. Dba Pursuit Aerospace), 522748 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 522748 (Dcp Spring Acquisition Company, Inc. Dba New England Spring Div New England Spring).
Key specifications for 522748: General Characteristics Item Description: STEEL AMS 6350 OR STEEL AMS 6355,SILVER PLATE AMS 2410 OR SILVER PLATE AMS 2412,1.270 INCH MIN 1.290 INCH MAX ID,1.801 INCH MIN 1.829 INCH MAX OD,0.036 INCH MAX THICK,0.450 INCH MIN 0.470 INCH MAX OVERALL H,2 INTERNAL KEYS EQUALLY SPACED IN. 1 specification is 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.