PartsTable TECHNICAL DATA SHEET
NSN 4730-00-916-2003Government record, cited

Nut, Tube Coupling4730-00-916-2003

NSN 4730-00-916-2003 · NIIN 009162003
FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4730-00-916-2003 · 4730009162003 · NIIN 009162003 · 00-916-2003 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · MS9197 · MS9197-05
Nearby stock numbers  ·
Features
  • Nut,tube Coupling — FSC 4730
  • Length to Shoulder: 0.610 INCHES NOMINAL IN
  • Width Across Flats: 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.500 INCHES IN
  • Nut Height: 0.690 INCHES NOMINAL IN
  • Surface Treatment: SILVER OVERALL
Identification
  • NSN: 4730-00-916-2003
  • NIIN: 009162003
  • 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 4730-00-916-2003, 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 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-916-2003
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
StatusACTIVE
Length to Shoulder0.610 INCHES NOMINAL IN
Width Across Flats0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
Thread SeriesUNF
Thread DirectionRIGHT-HAND
Nominal Thread Size0.500 INCHES IN
Nut Height0.690 INCHES NOMINAL IN
Surface TreatmentSILVER OVERALL
Precious Material and LocationSURFACE SILVER
Nut StyleTUBE COUPLING
Thread Class3B
Thread Quantity Per Inch20
MaterialSTEEL CORROSION RESISTING OVERALL
Smallest Inside Diameter0.374 INCHES NOMINAL IN
Nominal Tube Outside Diameter0.312 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-00-916-2005 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-940-7945 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-00-943-1784 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-013-6799 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-022-4076 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-061-5332 POSSIBLE MATCH
NUT,TUBE COUPLING
Possible match (shared part number)
4730-01-548-3400 POSSIBLE 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
ReferenceMeaning
MS9197 4/1 Identification reference
U.S. Government activity
MS9197-05 2/2 Government specification standardization
U.S. Government activity
Related Parts
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 4730-00-916-2003?

NSN 4730-00-916-2003 is a Nut,tube Coupling, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What NSN replaces 4730-00-916-2003?

7 possible matches (shared part number, not a government interchangeability claim): 4730-00-916-2005, 4730-00-940-7945, 4730-00-943-1784. Verify interchangeability with system specifications before substitution.

What are the specifications of 4730-00-916-2003?

Key specifications for 4730-00-916-2003: Length to Shoulder: 0.610 INCHES NOMINAL IN; Width Across Flats: 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND. 14 specifications are documented in the U.S. Government catalog.

Is NSN 4730-00-916-2003 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.
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