The Shaft,lower,valve,cabin Pressure, cataloged under National Stock Number 1660-00-162-0803, 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 Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1660-00-162-0803 |
| Primary Part Number | 40831A |
| Item Name | Shaft,lower,valve,cabin Pressure |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
| Status | ACTIVE |
| FSC Application Data | HEAT AND VENT SYSTEM,AIR CONDITIONING,AIRCRAFT |
| General Characteristics Item Description | STEEL,AMS5643,17-4PH,2.180 IN. MIN 2.210 IN.MAX LG,1.365 IN.MIN 1.380 IN. MAX OD,0.373 IN.MIN 0.374 IN. MAX ID,2 HOLES 0.062 IN.MIN 0.065 IN. MAX DIA SPACED 0.310 IN.MIN 0.314 IN. MAX,PASSIVATE PERQQ-P-35,HEAT TREAT PER MIL-H-6875,CONDITION H 1025 IN |
| 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 |
|---|---|
| 40831A | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
| Reference | Meaning |
|---|---|
| 40831A | 3/9 Design control — primary reference P S Manufacturing Inc Div Ps Manufacturing |
NSN 1660-00-162-0803 is a Shaft,lower,valve,cabin Pressure, manufactured by Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-162-0803 has 1 manufacturer part number on file: 40831A (Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S).
Key specifications for 40831A: FSC Application Data: HEAT AND VENT SYSTEM,AIR CONDITIONING,AIRCRAFT; General Characteristics Item Description: STEEL,AMS5643,17-4PH,2.180 IN. MIN 2.210 IN.MAX LG,1.365 IN.MIN 1.380 IN. MAX OD,0.373 IN.MIN 0.374 IN. MAX ID,2 HOLES 0.062 IN.MIN 0.065 IN. MAX DIA SPACED 0.310 IN.MIN 0.314 IN. MAX,PASSIVATE PERQQ-P-35,HEAT TREAT PER MIL-H-6875,CONDITION H 1025 IN. 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.
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.