Valve Assembly, Environmental Con1660-01-021-1617

NSN 1660-01-021-1617 · NIIN 010211617

FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories

Government record, cited

Also searched as 1660-01-021-1617 · 1660010211617 · NIIN 010211617 · 01-021-1617 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · 85D13-3 · 204-13715-12

Nearby stock numbers ← 1660-01-021-0733 · 1660-01-021-1701 Bracket, Guide →

Features

Valve Assembly,environmental Con — FSC 1660
Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY DWG REF

Identification

NSN: 1660-01-021-1617
NIIN: 010211617
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories

General Description

The Valve Assembly,environmental Con, cataloged under National Stock Number 1660-01-021-1617, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	1660-01-021-1617
Item Name	Valve Assembly,environmental Con
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status	ACTIVE
Reference Number Differentiating Characteristics	AS DIFFERENTIATED BY DWG REF

Lifecycle & Compliance

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

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
85D13-3	3/1 Design control — primary reference Grimes Aerospace Company
204-13715-12	7/1 Vendor item drawing reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

1660-00-006-4472

FLANGE,VALVE BODY

1660-00-009-5646

ADAPTER ASSEMBLY,BELLOWS

1660-00-019-8389

1660-00-019-8389 · Item name not on file

1660-00-019-8399

1660-00-019-8399 · Item name not on file

1660-00-031-5285

1660-00-031-5285 · Item name not on file

1660-00-302-4390

PISTON,REGULATING V

1660-00-441-0575

PISTON

1660-01-601-0729

ETHERNET SWITCH

Frequently Asked Questions

What is NSN 1660-01-021-1617?

NSN 1660-01-021-1617 is a Valve Assembly,environmental Con, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What are the specifications of 1660-01-021-1617?

Key specifications for 1660-01-021-1617: Special Features: REQUIRED NAME: VALVE,FIREWALL; End Item Identification: E-3A PROGRAM A; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY DWG REF. 1 specification is documented in the U.S. Government catalog.

Is NSN 1660-01-021-1617 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

What is the DEMIL code for NSN 1660-01-021-1617?

NSN 1660-01-021-1617 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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