The Stop,diaphragm,valve, cataloged under National Stock Number 1660-01-214-3635, 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 Testek Llc Dba Testek Solutions. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-01-214-3635 |
| Primary Part Number | 0597871 |
| Item Name | Stop,diaphragm,valve |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Testek Llc Dba Testek Solutions |
| Status | ACTIVE |
| FSC Application Data | VALVE-PRESSURE REGULATING 1660011429213 |
| General Characteristics Item Description | ALUMINUM ALLOY 6061; OUTSIDE DIA APPROX 7.370 IN.; 11 OF 12 BOLT HOLES EQUALLY SPACED ON A BSC DIA OF 6.950 IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0597871 PRIMARY | Testek Llc Dba Testek Solutions (USA) |
| Reference | Meaning |
|---|---|
| 0597871 | 5/9 Secondary reference Aai Corporation Div Mississippi Operations |
NSN 1660-01-214-3635 is a Stop,diaphragm,valve, manufactured by Testek Llc Dba Testek Solutions, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-214-3635 has 1 manufacturer part number on file: 0597871 (Testek Llc Dba Testek Solutions).
Key specifications for 0597871: FSC Application Data: VALVE-PRESSURE REGULATING 1660011429213; General Characteristics Item Description: ALUMINUM ALLOY 6061; OUTSIDE DIA APPROX 7.370 IN.; 11 OF 12 BOLT HOLES EQUALLY SPACED ON A BSC DIA OF 6.950 IN; End Item Identification: B-1B ACFT. 2 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 1660-01-214-3635 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.