Thermostat Assy6620-00-993-7528

NSN 6620-00-993-7528 · NIIN 009937528 · Part number 589636

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · FSC 6620 — Engine Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 77445

Government record, cited

NSN 6620-00-993-7528 — this item is cataloged by the U.S. Government under National Stock Number 6620-00-993-7528. Manufacturer of record part number: 589636.

Also searched as 6620-00-993-7528 · 6620009937528 · NIIN 009937528 · 00-993-7528 · FSC 6620 Engine Instruments · CAGE 77445 · 589636

Nearby stock numbers ← 6620-00-993-5547 Indicator, Pressure · 6620-00-993-7744 Transmitter, Pressure →

Features

Thermostat Assy — FSC 6620
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

Identification

NSN: 6620-00-993-7528
NIIN: 009937528
FSC: 6620 — Engine Instruments
FSG: 66 — Instruments and Laboratory Equipment
Primary part number: 589636
Manufacturer: Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney

General Description

The Thermostat Assy, cataloged under National Stock Number 6620-00-993-7528, is classified within Federal Supply Class 6620 (Engine Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. 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	Thermostat Assy
FSC / FSG	6620 — Engine Instruments (FSG 66)
Manufacturers	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445)

Technical Specifications

Parameter	Value
NSN	6620-00-993-7528
Primary Part Number	589636
Item Name	Thermostat Assy
FSC / FSG	6620 / 66 — Engine Instruments
Manufacturer	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Status	ACTIVE

Lifecycle & Compliance

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

⇄ Related Items 1

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

3120-01-267-3099 POSSIBLE MATCH

BUSHING,SLEEVE

Possible match (shared part number)

Cross-Reference Index

Part Number	Manufacturer
589636 PRIMARY	Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)

Related Parts

3120-01-267-3099POSSIBLE MATCH

BUSHING,SLEEVE

Frequently Asked Questions

What is NSN 6620-00-993-7528?

NSN 6620-00-993-7528 is a Thermostat Assy, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 6620, Engine Instruments. Status: active.

What part numbers are listed for NSN 6620-00-993-7528?

NSN 6620-00-993-7528 has 1 manufacturer part number on file: 589636 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 6620-00-993-7528?

1 possible match (shared part number, not a government interchangeability claim): 3120-01-267-3099. Verify interchangeability with system specifications before substitution.

Is NSN 6620-00-993-7528 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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