The Bellows,cooling Duct, cataloged under National Stock Number 1560-00-021-8374, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Arrowhead Products Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1560-00-021-8374 |
| Primary Part Number | 712281 |
| Item Name | Bellows,cooling Duct |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| General Characteristics Item Description | BODY DATA,FIBERGLASS,SILICONE IMPREGNATED,FUEL AND OIL RESISTANT,EXTERIOR RING DATA,STEEL,CORROSION RESISTANT,2.700 IN. DIA,0.060 IN. THK,INTERNAL RING DATA,STEEL,CORROSION RESISTANT,3.000 IN. DIA,0.060 IN. THK,1 EA END FLANGE PART NO. 55342-1-250 FSCM 70628,2.3 TO 19.4 PSIG OPERATING PRESSURE,29.1 PSIG ULTIMATE PRESSURE,3.650 IN. INSTALLED LG,2.550 IN. COMPRESSED LG,3.380 ID OD IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 712281 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 3P90950-101 | 1/2 Source control — Government-approved source U.S. Government activity |
| 712281 | 5/9 Secondary reference Federal-Mogul Corp Chassis Products Div |
NSN 1560-00-021-8374 is a Bellows,cooling Duct, manufactured by Arrowhead Products Corp, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-00-021-8374 has 1 manufacturer part number on file: 712281 (Arrowhead Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 5315-00-859-6248. Verify interchangeability with system specifications before substitution.
Key specifications for 712281: General Characteristics Item Description: BODY DATA,FIBERGLASS,SILICONE IMPREGNATED,FUEL AND OIL RESISTANT,EXTERIOR RING DATA,STEEL,CORROSION RESISTANT,2.700 IN. DIA,0.060 IN. THK,INTERNAL RING DATA,STEEL,CORROSION RESISTANT,3.000 IN. DIA,0.060 IN. THK,1 EA END FLANGE PART NO. 55342-1-250 FSCM 70628,2.3 TO 19.4 PSIG OPERATING PRESSURE,29.1 PSIG ULTIMATE PRESSURE,3.650 IN. INSTALLED LG,2.550 IN. COMPRESSED LG,3.380 ID OD IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.