The Retainer,instrument, cataloged under National Stock Number 2840-00-912-0674, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-912-0674 |
| Primary Part Number | 457957 |
| Item Name | Retainer,instrument |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL AMS5613,0.750 IN. DIA BY 1.974 IN. LG,2 MTG HOLES 0.280 IN. MIN 0.282 IN. MAX DIA CENTER HOLE 0.484 IN. MIN 0.489 IN. MAX DIA 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 |
|---|---|
| 457957 | Royson Engineering Company (USA) |
| 457957 | Motorola Canada Ltd (CAN) |
| 457957 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 457957 | J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc (USA) |
| Reference | Meaning |
|---|---|
| 457957 | 5/9 Secondary reference Kwik File Storage Systems Llc |
NSN 2840-00-912-0674 is a Retainer,instrument, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-912-0674 has 4 manufacturer part numbers on file: 457957 (Royson Engineering Company), 457957 (Motorola Canada Ltd), 457957 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 457957 (J.f. Fredericks Aero Llc Dba J F Fredericks Aero Llc Div J F Frederics Aero Llc).
1 possible match (shared part number, not a government interchangeability claim): 6635-01-172-8388. Verify interchangeability with system specifications before substitution.
Key specifications for 457957: General Characteristics Item Description: STAINLESS STEEL AMS5613,0.750 IN. DIA BY 1.974 IN. LG,2 MTG HOLES 0.280 IN. MIN 0.282 IN. MAX DIA CENTER HOLE 0.484 IN. MIN 0.489 IN. MAX DIA 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.