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NSN 4310-01-311-7640Government record, cited

Pneumatic Muffler, Exhaust-Intake4310-01-311-7640

NSN 4310-01-311-7640 · NIIN 013117640 · Part number 2621-126-01 ASSY 81
Derbyshire Machine & Tool Co · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 71905
Government record, cited
NSN 4310-01-311-7640 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-311-7640. Manufacturer of record part number: 2621-126-01 ASSY 81.
Also searched as  4310-01-311-7640 · 4310013117640 · NIIN 013117640 · 01-311-7640 · FSC 4310 Compressors and Vacuum Pumps · CAGE 71905 · 2621-126-01 ASSY 81
Nearby stock numbers  ·
Features
  • Pneumatic Muffler,exhaust-Intake — FSC 4310
  • 1 manufacturer part number on file
  • Manufacturer of record: Derbyshire Machine & Tool Co
Identification
  • NSN: 4310-01-311-7640
  • NIIN: 013117640
  • FSC: 4310 — Compressors and Vacuum Pumps
  • FSG: 43 — Pumps and Compressors
  • Primary part number: 2621-126-01 ASSY 81
  • Manufacturer: Derbyshire Machine & Tool Co
General Description

The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4310-01-311-7640, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Derbyshire Machine & Tool Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.

Catalog Facts
Item NamePneumatic Muffler,exhaust-Intake
FSC / FSG4310 — Compressors and Vacuum Pumps (FSG 43)
ManufacturersDerbyshire Machine & Tool Co (CAGE 71905)
Technical Specifications
ParameterValue
NSN4310-01-311-7640
Primary Part Number2621-126-01 ASSY 81
Item NamePneumatic Muffler,exhaust-Intake
FSC / FSG4310 / 43 — Compressors and Vacuum Pumps
ManufacturerDerbyshire Machine & Tool Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
2621-126-01 ASSY 81 Derbyshire Machine & Tool Co (USA)
Reference documents
ReferenceMeaning
2621-126-01 ASSY 81 3/2 Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 4310 — Compressors and Vacuum Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4310-00-000-0050
COMPRESSOR UNIT,RECIPROCATING
4310-00-001-0059
4310-00-001-0059 · Item name not on file
4310-00-001-2044
MOUNTING PAD,TANK,PRESSURE
4310-00-001-3477
PARTS KIT,VACUUM PUMP
4310-00-001-3493
VACUUM PUMP,ROTARY
4310-00-001-6194
4310-00-001-6194 · Item name not on file
4310-00-001-6381
4310-00-001-6381 · Item name not on file
4310-00-001-7755
PARTS KIT,VACUUM PUMP

Frequently Asked Questions

What is NSN 4310-01-311-7640?

NSN 4310-01-311-7640 is a Pneumatic Muffler,exhaust-Intake, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.

What part numbers are listed for NSN 4310-01-311-7640?

NSN 4310-01-311-7640 has 1 manufacturer part number on file: 2621-126-01 ASSY 81 (Derbyshire Machine & Tool Co).

Is NSN 4310-01-311-7640 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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