The Bellows,pressure, cataloged under National Stock Number 1660-00-730-5725, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Arrowhead Products Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-00-730-5725 |
| Primary Part Number | 10235-5 |
| Item Name | Bellows,pressure |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Arrowhead Products Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10235-5 PRIMARY | Arrowhead Products Corp (USA) |
| Reference | Meaning |
|---|---|
| 10235-5 | 5/9 Secondary reference Federal-Mogul Corp Chassis Products Div |
| 632159-3 | 5/2 Secondary reference U.S. Government activity |
NSN 1660-00-730-5725 is a Bellows,pressure, manufactured by Arrowhead Products Corp, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-730-5725 has 1 manufacturer part number on file: 10235-5 (Arrowhead Products Corp).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-071-3050. Verify interchangeability with system specifications before substitution.
Key specifications for 10235-5: Special Features: C/O 2 STIFFENER;2 BELLOW;2 DUCT HALF;2 TIE ROD ASSY;4 COLLAR;4 TUBE;CRES,COMP 321 AND 347 PER MIL-S-6721 O/A;12.875 IN. LG O/A;500.0 PSIG AT 630.0 DEG F BURST PRESSURE;340.0 PSIG AT 630.0 DEG F PROOF PRESSURE;250.0 PSIG AT 630.0 DEG F MAX. OPERATING PRESSURE 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.
NSN 1660-00-730-5725 has DEMIL Code B. 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.