Diaphragm-Air Shuto1660-00-449-2158

NSN 1660-00-449-2158 · NIIN 004492158 · Part number P5502-6

Superior Valve Co · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 58553

Government record, cited

NSN 1660-00-449-2158 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-449-2158. Manufacturer of record part number: P5502-6.

Also searched as 1660-00-449-2158 · 1660004492158 · NIIN 004492158 · 00-449-2158 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 58553 · P5502-6

Nearby stock numbers ← 1660-00-449-2155 · 1660-00-449-2201 →

Features

Diaphragm-Air Shuto — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Superior Valve Co

Identification

NSN: 1660-00-449-2158
NIIN: 004492158
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: P5502-6
Manufacturer: Superior Valve Co

General Description

The Diaphragm-Air Shuto, cataloged under National Stock Number 1660-00-449-2158, 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 Superior Valve Co. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Catalog Facts

Item Name	Diaphragm-Air Shuto
FSC / FSG	1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers	Superior Valve Co (CAGE 58553)

Technical Specifications

Parameter	Value
NSN	1660-00-449-2158
Primary Part Number	P5502-6
Item Name	Diaphragm-Air Shuto
FSC / FSG	1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer	Superior Valve Co
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)

⇄ Related Items 1

Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.

4820-01-298-2199 POSSIBLE MATCH

VALVE,CHECK

Possible match (shared part number)

Cross-Reference Index

Part Number	Manufacturer
P5502-6 PRIMARY	Superior Valve Co (USA)

Related Parts

4820-01-298-2199POSSIBLE MATCH

VALVE,CHECK

Frequently Asked Questions

What is NSN 1660-00-449-2158?

NSN 1660-00-449-2158 is a Diaphragm-Air Shuto, manufactured by Superior Valve Co, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.

What part numbers are listed for NSN 1660-00-449-2158?

NSN 1660-00-449-2158 has 1 manufacturer part number on file: P5502-6 (Superior Valve Co).

What NSN replaces 1660-00-449-2158?

1 possible match (shared part number, not a government interchangeability claim): 4820-01-298-2199. Verify interchangeability with system specifications before substitution.

Is NSN 1660-00-449-2158 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.

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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