The Washer,key, cataloged under National Stock Number 5310-01-012-2048, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-012-2048 |
| Primary Part Number | 742867 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Distance From Centerline to Inside of Prebent Key | 0.930 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Material Document and Classification | AMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Internal Prebent Key Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 OVERALL |
| Hole Diameter | 2.130 INCHES MINIMUM AND 2.150 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 |
|---|---|
| 742867 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 742867 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
NSN 5310-01-012-2048 is a Washer,key, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-012-2048 has 1 manufacturer part number on file: 742867 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-272-7364, 1680-01-299-6003. Verify interchangeability with system specifications before substitution.
Key specifications for 742867: Distance From Centerline to Inside of Prebent Key: 0.930 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Material Document and Classification: AMS6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS6355 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Internal Prebent Key Length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Material: STEEL COMP 4130 OR STEEL COMP 8630 OVERALL. 5 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.