PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

P57176Coupling,tube

Lexair Inc · NSN 4730-01-166-8315 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-166-8315 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-166-8315. Primary manufacturer part number: P57176.
Features
  • Coupling,tube — FSC 4730
  • Nominal Overall Length: 2.000 INCHES IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Lexair Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Coupling,tube, cataloged under National Stock Number 4730-01-166-8315, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Lexair Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-166-8315
Primary Part NumberP57176
Item NameCoupling,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerLexair Inc
StatusACTIVE
Nominal Overall Length2.000 INCHES IN
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5330-00-807-7105 INTERCHANGEABLE
Packing,preformed
2990-00-865-2330T-4748 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3110-00-933-3807A2345 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5330-00-969-284915621 INTERCHANGEABLE
Gasket
Itt Marlow a Unit of Itt Pumps and Compressors Div
4320-01-194-2704H15621 INTERCHANGEABLE
Retainer,pump Assy
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5310-01-226-30331562-1 INTERCHANGEABLE
Washer
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
5315-01-522-00581562-1 INTERCHANGEABLE
Pin,straight,headless
Tate Andale, Llc
6680-01-528-6912FCS-8-1 INTERCHANGEABLE
Transmitter,rate of Flow
Aerospace Control Products, Inc. Dba Aerospace Control Products Inc
6545-01-581-4120UA 905C INTERCHANGEABLE
Ves 50 Pt Sm-2010
Department of the Army U S Army Medical Material Agency Mcmr-Mmo-Sa
Cross-Reference Index
Part NumberManufacturer
P57176 Bosch Rexroth Corporation Div Bosch Rexroth (USA)
156/21 Wellman Group (GBR)
P57176 PRIMARY Lexair Inc (USA)
Related Parts
5330-00-807-7105INTERCHANGEABLE
PACKING,PREFORMED
2990-00-865-2330INTERCHANGEABLE
MUFFLER,EXHAUST
T-4748
3110-00-933-3807INTERCHANGEABLE
BEARING,BALL,THRUST
A2345
5330-00-969-2849INTERCHANGEABLE
GASKET
15621
4320-01-194-2704INTERCHANGEABLE
RETAINER,PUMP ASSY
H15621
5310-01-226-3033INTERCHANGEABLE
WASHER
1562-1
5315-01-522-0058INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
1562-1
6680-01-528-6912INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
FCS-8-1
6545-01-581-4120INTERCHANGEABLE
VES 50 PT SM-2010
UA 905C

Frequently Asked Questions

What is NSN 4730-01-166-8315?

NSN 4730-01-166-8315 is a Coupling,tube, manufactured by Lexair Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-166-8315?

NSN 4730-01-166-8315 has 3 cross-referenced part numbers: P57176 (Bosch Rexroth Corporation Div Bosch Rexroth), 156/21 (Wellman Group), P57176 (Lexair Inc).

What NSN replaces 4730-01-166-8315?

There are 9 known substitutes for 4730-01-166-8315: 5330-00-807-7105, 2990-00-865-2330, 3110-00-933-3807 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of P57176?

Key specifications for P57176: Nominal Overall Length: 2.000 INCHES IN; End Item Identification: LEXAIR INC., COMPRESSOR CO 2 SCRUBBER, MODEL 2-AP-8-BS; Material: STEEL CORROSION RESISTING OVERALL. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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