The Fuel Pump Assembly, cataloged under National Stock Number 1680-01-662-2898, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1680-01-662-2898 |
| Primary Part Number | AUTHORIZED DISTRIBUTOR 55820 |
| Item Name | Fuel Pump Assembly |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 4952456 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| DISTRIBUTOR | Rural Route 2, Llc Dba NSN Solutions (USA) |
| 4952456 | Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics (USA) |
| AUTHORIZED DISTRIBUTOR 55820 PRIMARY | Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics (USA) |
| AUTHORIZED DISTRIBUTOR 4952456 PRIMARY | Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics (USA) |
| Reference | Meaning |
|---|---|
| 4102-483004 | 1/2 Source control — Government-approved source U.S. Government activity |
| 4952456 | 3/9 Design control — primary reference Rtx Corporation Div Pratt & Whitney |
NSN 1680-01-662-2898 is a Fuel Pump Assembly, manufactured by Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-662-2898 has 5 manufacturer part numbers on file: 4952456 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), DISTRIBUTOR (Rural Route 2, Llc Dba NSN Solutions), 4952456 (Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics), AUTHORIZED DISTRIBUTOR 55820 (Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics), AUTHORIZED DISTRIBUTOR 4952456 (Aar Supply Chain, Inc Dba Aar Defense Systems & Logistics).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-667-2372. Verify interchangeability with system specifications before substitution.
Key specifications for AUTHORIZED DISTRIBUTOR 55820: Criticality Code Justification: AGAV; End Item Identification: CH-53E HELICOPTER. 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.
NSN 1680-01-662-2898 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.