NSN 4310-01-377-0025 · NIIN 013770025 · Part number 641-9521TR
Naval Inventory Control Point Mechanicsburg · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 03950
Government record, cited
NSN 4310-01-377-0025 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-377-0025. Manufacturer of record part number: 641-9521TR.
Also searched as4310-01-377-0025 ·
4310013770025 ·
NIIN 013770025 ·
01-377-0025 ·
FSC 4310 Compressors and Vacuum Pumps · CAGE 03950 · 641-9521TR · 506-8246TR · TIN-527 · 641-9521 · 506-8246
FSC Application Data: 3K COMPRESSOR AND MOTOR COMBINATION
Criticality Code Justification: ZZZY
Prime Mover Type: ELECTRIC MOTOR
Compressor Quantity: 1
Reference Number Differentiating Characteristics: SELECTED AND CERTIFIED FOR TRIDENT SUBMARINE APPLICATION
2 manufacturer part numbers on file
Manufacturer of record: Naval Inventory Control Point Mechanicsburg
Identification
NSN: 4310-01-377-0025
NIIN: 013770025
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 641-9521TR
Manufacturer: Naval Inventory Control Point Mechanicsburg
General Description
The Compressor Unit,rotary, cataloged under National Stock Number 4310-01-377-0025, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4310-01-377-0025
Primary Part Number
641-9521TR
Item Name
Compressor Unit,rotary
FSC / FSG
4310 / 43 — Compressors and Vacuum Pumps
Manufacturer
Naval Inventory Control Point Mechanicsburg
Status
ACTIVE
FSC Application Data
3K COMPRESSOR AND MOTOR COMBINATION
Criticality Code Justification
ZZZY
Prime Mover Type
ELECTRIC MOTOR
Compressor Quantity
1
Reference Number Differentiating Characteristics
SELECTED AND CERTIFIED FOR TRIDENT SUBMARINE APPLICATION
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
S
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4620-01-415-4755641-9521POSSIBLE MATCH
DISTILLATION UNIT,WATER,THERMOCO
Possible match (shared part number)Aqua-Chem, Inc. Dba Aqua-Chem Inc
4720-01-449-9470861-08281-000POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)Aqua-Chem, Inc. Dba Aqua-Chem Inc
4730-01-451-7649816-07698-000POSSIBLE MATCH
CLAMP,HOSE
Possible match (shared part number)Aqua-Chem, Inc. Dba Aqua-Chem Inc
4720-01-451-8229506-08246-39POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)Biotronic Systems Corp
4720-01-451-8237506-08246-038POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)Aqua-Chem, Inc. Dba Aqua-Chem Inc
NSN 4310-01-377-0025 is a Compressor Unit,rotary, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
What part numbers are listed for NSN 4310-01-377-0025?
NSN 4310-01-377-0025 has 2 manufacturer part numbers on file: 641-9521TR (Naval Inventory Control Point Mechanicsburg), 506-8246TR (Naval Inventory Control Point Mechanicsburg).
What NSN replaces 4310-01-377-0025?
7 possible matches (shared part number, not a government interchangeability claim): 4620-01-415-4755, 4720-01-449-9470, 4730-01-451-7649. Verify interchangeability with system specifications before substitution.
What are the specifications of 641-9521TR?
Key specifications for 641-9521TR: FSC Application Data: 3K COMPRESSOR AND MOTOR COMBINATION; Criticality Code Justification: ZZZY; Prime Mover Type: ELECTRIC MOTOR; Compressor Quantity: 1. 5 specifications are documented in the U.S. Government catalog.
Is NSN 4310-01-377-0025 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.