FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as4730-01-691-7002 ·
4730016917002 ·
NIIN 016917002 ·
01-691-7002 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · MS51888-08 · MIL-DTL-18866
Nearby stock numbers← 4730-01-691-6950 Tee, Pipe
·
4730-01-691-7115 Adapter, Straight, Tube to Boss →
4730-01-691-7002 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Locknut,tube Fitting — FSC 4730
Nut Length: 0.875 INCHES NOMINAL IN
Thread Series: UNF
Hole Configuration Style: CONFIGURATION B
Material Document and Classification: MIL-DTL-18866 GOVERNMENT STD/SPEC SINGLE MATERIAL RESPONSE NUT
Nominal Thread Size: 0.750 INCHES IN
Nut Height: 0.875 INCHES NOMINAL IN
Nut Style: TUBE FITTING LOCKNUT
Identification
NSN: 4730-01-691-7002
NIIN: 016917002
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-691-7002, 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 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
MIL-DTL-18866 GOVERNMENT STD/SPEC SINGLE MATERIAL RESPONSE NUT
Nominal Thread Size
0.750 INCHES IN
Nut Height
0.875 INCHES NOMINAL IN
Nut Style
TUBE FITTING LOCKNUT
Thread Class
2B
Material
STEEL NUT
Nominal Tube Outside Diameter
0.500 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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
MS51888-08
2/2Government specification standardization
U.S. Government activity
MIL-DTL-18866
4/1Identification reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-691-7002?
NSN 4730-01-691-7002 is a Locknut,tube Fitting, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-01-691-7002?
Key specifications for 4730-01-691-7002: Nut Length: 0.875 INCHES NOMINAL IN; Thread Series: UNF; Hole Configuration Style: CONFIGURATION B; Material Document and Classification: MIL-DTL-18866 GOVERNMENT STD/SPEC SINGLE MATERIAL RESPONSE NUT. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-691-7002 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.