PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9M7357Coupling,pipe

Caterpillar Inc Div Caterpillar Defense · NSN 4730-00-976-3976 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-976-3976 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-976-3976. Primary manufacturer part number: 9M7357.
Features
  • Coupling,pipe — FSC 4730
  • Style Designator: GROOVED BOTH ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Material: STEEL OVERALL
  • Furnished Items and Quantity: 1 BULKHEAD NUT AND 1 FLAT WASHER
  • Nominal Overall Length: 0.938 INCHES IN
  • Thread Series Designator: NPT ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-00-976-3976, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-976-3976
Primary Part Number9M7357
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Style DesignatorGROOVED BOTH ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Thread Size0.250 INCHES ALL ENDS IN
MaterialSTEEL OVERALL
Furnished Items and Quantity1 BULKHEAD NUT AND 1 FLAT WASHER
Nominal Overall Length0.938 INCHES IN
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6625-00-107-8259 INTERCHANGEABLE
Voltmeter
4730-00-407-0566A217709 INTERCHANGEABLE
Coupling,pipe
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5360-00-408-0287129B INTERCHANGEABLE
Spring,lock
Follett Time Recording Co Inc
4730-00-897-549721204 INTERCHANGEABLE
Coupling,pipe
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5996-01-103-0424 INTERCHANGEABLE
Amplifier,audio Frequency
4730-01-210-1288 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Cross-Reference Index
Part NumberManufacturer
9M7357 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
129B Imperial (USA)
129-B-3/8X1-5/16 Imperial (USA)
Related Parts
6625-00-107-8259INTERCHANGEABLE
VOLTMETER
4730-00-407-0566INTERCHANGEABLE
COUPLING,PIPE
A217709
5360-00-408-0287INTERCHANGEABLE
SPRING,LOCK
129B
4730-00-897-5497INTERCHANGEABLE
COUPLING,PIPE
21204
5996-01-103-0424INTERCHANGEABLE
AMPLIFIER,AUDIO FREQUENCY
4730-01-210-1288INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE

Frequently Asked Questions

What is NSN 4730-00-976-3976?

NSN 4730-00-976-3976 is a Coupling,pipe, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-976-3976?

NSN 4730-00-976-3976 has 3 cross-referenced part numbers: 9M7357 (Caterpillar Inc Div Caterpillar Defense), 129B (Imperial), 129-B-3/8X1-5/16 (Imperial).

What NSN replaces 4730-00-976-3976?

There are 6 known substitutes for 4730-00-976-3976: 6625-00-107-8259, 4730-00-407-0566, 5360-00-408-0287 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9M7357?

Key specifications for 9M7357: Style Designator: GROOVED BOTH ENDS; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Nominal Thread Size: 0.250 INCHES ALL ENDS IN; Material: STEEL OVERALL. 8 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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