The Guard,fan Impeller, cataloged under National Stock Number 4140-01-270-0507, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is General Dynamics Land Systems Canadacorp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-270-0507 |
| Primary Part Number | 10626716 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | General Dynamics Land Systems Canadacorp |
| Status | ACTIVE |
| 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 |
|---|---|
| 10626716 | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 5262548-002 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| GG505A2 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 1810217 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 501513 | 3/2 Design control — primary reference U.S. Government activity |
| 224A753-1 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rotary and Mission Systems |
| PL1983507 REV B ITEM NO 5 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 501513DS | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 77C717583P001 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms |
| 1005878-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Corp |
| 5019100 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| KC-272261 | D/9 Drawing number reference only U.S. Government activity |
| G267243-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company Div Corp |
NSN 4140-01-270-0507 is a Guard,fan Impeller, manufactured by General Dynamics Land Systems Canadacorp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-270-0507 has 1 manufacturer part number on file: 10626716 (General Dynamics Land Systems Canadacorp).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-436-9161, 3040-01-443-9561. Verify interchangeability with system specifications before substitution.
Key specifications for 10626716: Special Features: 0.062 IN.DIA STAINLESS STEEL WIRE;4 MTG LUGS SPACED 90 DEG APART;3 CONCENTRIC RINGS W/DIA OF 2.31 IN.,3.31 IN. AND 4.31 IN.; IN. 0 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.