4730-00-912-7232 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Nut,tube Coupling — FSC 4730
Length to Shoulder: 0.638 INCHES NOMINAL IN
Width Across Flats: 0.688 INCHES NOMINAL IN
Thread Series: UNF
Material Document and Classification: AMS 5646 ASSN STD 1ST MATERIAL RESPONSE OR 66,AISI 316/SAE 30316 FED STD SINGLE MATERIAL RESPONSE OVERALL
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.562 INCHES IN
Nut Height: 0.742 INCHES NOMINAL IN
Identification
NSN: 4730-00-912-7232
NIIN: 009127232
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Nut,tube Coupling, cataloged under National Stock Number 4730-00-912-7232, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
AMS 5646 ASSN STD 1ST MATERIAL RESPONSE OR 66,AISI 316/SAE 30316 FED STD SINGLE MATERIAL RESPONSE OVERALL
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.562 INCHES IN
Nut Height
0.742 INCHES NOMINAL IN
Surface Treatment
SILVER OVERALL
Precious Material and Location
SURFACE SILVER
Nut Style
TUBE COUPLING
Thread Class
3B
Thread Quantity Per Inch
18
Material
STEEL COMP 347 OR STEEL COMP 316 OVERALL
Fabrication Method
MACHINED
Smallest Inside Diameter
0.438 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
Nominal Tube Outside Diameter
0.375 INCHES IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items10
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-00-916-2000POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-916-2002POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-916-2003POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-916-2005POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-940-7945POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-943-1784POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-013-6799POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-022-4076POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-061-5332POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-548-3400POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MS9197-06
2/2Government specification standardization
U.S. Government activity
MS9197
4/1Identification reference
U.S. Government activity
4730PL0669641
6/9Informative reference only
Jednolity Indeks Materialowy - Uniform Material Index
Related Parts
4730-00-916-2000POSSIBLE MATCH
NUT,TUBE COUPLING
4730-00-916-2002POSSIBLE MATCH
NUT,TUBE COUPLING
4730-00-916-2003POSSIBLE MATCH
NUT,TUBE COUPLING
4730-00-916-2005POSSIBLE MATCH
NUT,TUBE COUPLING
4730-00-940-7945POSSIBLE MATCH
NUT,TUBE COUPLING
4730-00-943-1784POSSIBLE MATCH
NUT,TUBE COUPLING
4730-01-013-6799POSSIBLE MATCH
NUT,TUBE COUPLING
4730-01-022-4076POSSIBLE MATCH
NUT,TUBE COUPLING
4730-01-061-5332POSSIBLE MATCH
NUT,TUBE COUPLING
4730-01-548-3400POSSIBLE MATCH
NUT,TUBE COUPLING
Frequently Asked Questions
What is NSN 4730-00-912-7232?
NSN 4730-00-912-7232 is a Nut,tube Coupling, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What NSN replaces 4730-00-912-7232?
10 possible matches (shared part number, not a government interchangeability claim): 4730-00-916-2000, 4730-00-916-2002, 4730-00-916-2003. Verify interchangeability with system specifications before substitution.
What are the specifications of 4730-00-912-7232?
Key specifications for 4730-00-912-7232: Length to Shoulder: 0.638 INCHES NOMINAL IN; Width Across Flats: 0.688 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: AMS 5646 ASSN STD 1ST MATERIAL RESPONSE OR 66,AISI 316/SAE 30316 FED STD SINGLE MATERIAL RESPONSE OVERALL. 16 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-912-7232 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.