PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11221Nipple,pipe

Gregory Engineering Corp · NSN 4730-01-337-3721 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-337-3721 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-337-3721. Primary manufacturer part number: 11221.
Features
  • Nipple,pipe — FSC 4730
  • 1 verified cross-reference
  • Primary manufacturer: Gregory Engineering Corp
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-01-337-3721, 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 Gregory Engineering Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNipple,pipe
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersGregory Engineering Corp (CAGE 31849)
Technical Specifications
ParameterValue
NSN4730-01-337-3721
Primary Part Number11221
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerGregory Engineering Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2920-00-133-3291112-21 INTERCHANGEABLE
Rotor,generator
Prestolite Electric Inc
5136-00-228-099554661 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
5360-00-256-96431-1221 INTERCHANGEABLE
Spring,helical,compression
Terex Usa, Llc Dba Terex Equipment Services
6350-00-554-8774223585 INTERCHANGEABLE
Horn,signal
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4810-00-633-380411221 INTERCHANGEABLE
Seat,valve
Mission Systems Orchard Park Inc
6130-00-702-6815 INTERCHANGEABLE
Rectifier,metallic
5330-00-768-85575782 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
5963-01-209-575711221 INTERCHANGEABLE
Electronic Module,standardized
Nautel C-Tech Limited
4320-01-278-8683C227 INTERCHANGEABLE
Ring,wearing
Circor Naval Solutions Llc Dba Warren Pumps
4730-01-312-59251122-1 INTERCHANGEABLE
Nut,union
R & D Machine Rafael Anaya Div Defense Logistics Agency
Cross-Reference Index
Part NumberManufacturer
11221 Gregory Engineering Corp (USA)
Related Parts
2920-00-133-3291INTERCHANGEABLE
ROTOR,GENERATOR
112-21
5136-00-228-0995INTERCHANGEABLE
TAP,THREAD CUTTING
54661
5360-00-256-9643INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
1-1221
6350-00-554-8774INTERCHANGEABLE
HORN,SIGNAL
223585
4810-00-633-3804INTERCHANGEABLE
SEAT,VALVE
11221
6130-00-702-6815INTERCHANGEABLE
RECTIFIER,METALLIC
5330-00-768-8557INTERCHANGEABLE
SEAL,PLAIN ENCASED
5782
5963-01-209-5757INTERCHANGEABLE
ELECTRONIC MODULE,STANDARDIZED
11221
4320-01-278-8683INTERCHANGEABLE
RING,WEARING
C227
4730-01-312-5925INTERCHANGEABLE
NUT,UNION
1122-1
6850-01-394-0162INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
1122-1

Frequently Asked Questions

What is NSN 4730-01-337-3721?

NSN 4730-01-337-3721 is a Nipple,pipe, manufactured by Gregory Engineering Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-337-3721?

NSN 4730-01-337-3721 has 1 cross-referenced part number: 11221 (Gregory Engineering Corp).

What NSN replaces 4730-01-337-3721?

There are 11 known substitutes for 4730-01-337-3721: 2920-00-133-3291, 5136-00-228-0995, 5360-00-256-9643 and 8 more. Verify interchangeability with system specifications before substitution.

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