PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34212Coupling,bellows Assembly

Senior Operations Llc Dba Metal Bellows Div Metal Bellows · NSN 4730-00-937-3007 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-937-3007 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-937-3007. Primary manufacturer part number: 34212.
Features
  • Coupling,bellows Assembly — FSC 4730
  • General Characteristics Item Description: CRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN
  • 4 verified cross-references
  • Primary manufacturer: Senior Operations Llc Dba Metal Bellows Div Metal Bellows
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Coupling,bellows Assembly, cataloged under National Stock Number 4730-00-937-3007, 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 Senior Operations Llc Dba Metal Bellows Div Metal Bellows. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4730-00-937-3007
Primary Part Number34212
Item NameCoupling,bellows Assembly
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSenior Operations Llc Dba Metal Bellows Div Metal Bellows
StatusACTIVE
General Characteristics Item DescriptionCRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2810-00-037-686434212 INTERCHANGEABLE
Liner,reduction
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6670-00-185-3121 INTERCHANGEABLE
Load Cell,force-Weight
4820-00-287-4234578-2.5 INTERCHANGEABLE
Valve,check
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
5340-00-358-57111603365 INTERCHANGEABLE
Clamp,loop
Chrysler Realty Company Llc Dba Daimler Chrysler
3010-00-403-6863APD783 INTERCHANGEABLE
Coupling,shaft
Senior Operations Llc Dba Metal Bellows Div Metal Bellows
5975-00-421-1317LA11 INTERCHANGEABLE
Conduit,metal,flexible
Electri-Flex Co
4820-01-310-65021409M10P01 INTERCHANGEABLE
Valve,check
Knight Aerospace Products, Inc.
4030-01-620-062834212 INTERCHANGEABLE
Swivel and Link Assembly
Mjt Holdings Llc
5305-01-631-1244101730-03 INTERCHANGEABLE
Screw,cap,socket Head
General Dynamics Land Systems Inc. Div Gdls Global Llc
Cross-Reference Index
Part NumberManufacturer
34212 PRIMARY Senior Operations Llc Dba Metal Bellows Div Metal Bellows (USA)
950158-18 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
34212 Senior Flexonics Inc (USA)
APD783 Augat Inc (USA)
Related Parts
2810-00-037-6864INTERCHANGEABLE
LINER,REDUCTION
34212
6670-00-185-3121INTERCHANGEABLE
LOAD CELL,FORCE-WEIGHT
4820-00-287-4234INTERCHANGEABLE
VALVE,CHECK
578-2.5
5340-00-358-5711INTERCHANGEABLE
CLAMP,LOOP
1603365
3010-00-403-6863INTERCHANGEABLE
COUPLING,SHAFT
APD783
5975-00-421-1317INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
LA11
4820-01-310-6502INTERCHANGEABLE
VALVE,CHECK
1409M10P01
4030-01-620-0628INTERCHANGEABLE
SWIVEL AND LINK ASSEMBLY
34212
5305-01-631-1244INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
101730-03

Frequently Asked Questions

What is NSN 4730-00-937-3007?

NSN 4730-00-937-3007 is a Coupling,bellows Assembly, manufactured by Senior Operations Llc Dba Metal Bellows Div Metal Bellows, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-937-3007?

NSN 4730-00-937-3007 has 4 cross-referenced part numbers: 34212 (Senior Operations Llc Dba Metal Bellows Div Metal Bellows), 950158-18 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 34212 (Senior Flexonics Inc), APD783 (Augat Inc).

What NSN replaces 4730-00-937-3007?

There are 9 known substitutes for 4730-00-937-3007: 2810-00-037-6864, 6670-00-185-3121, 4820-00-287-4234 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 34212?

Key specifications for 34212: General Characteristics Item Description: CRES HUBS,0.356 IN.O/A LG,0.300 IN.O/A DIA,0.130 IN.OD HUBS,0.125 IN.ID HUB ONE END,0.095 IN.ID OTHER END,0.120 IN.LG HUBS,BOTH HUBS SLOTTED 0.020 IN.W IN. 1 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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