PartsTable TECHNICAL DATA SHEET
NSN 4730-01-514-6676Government record, cited

Coupling Half, Quick Disconnect4730-01-514-6676

NSN 4730-01-514-6676 · NIIN 015146676 · Part number 6391450 FIND 021
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-514-6676 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-514-6676. Manufacturer of record part number: 6391450 FIND 021.
Also searched as  4730-01-514-6676 · 4730015146676 · NIIN 015146676 · 01-514-6676 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 6391450 FIND 021 · 6391450 · 6536K21
Nearby stock numbers  ·
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Criticality Code Justification: FEAT
  • Style Designator: MALE COUPLING HALF
  • Leg Length: 1.0875 INCHES NOMINAL IN
  • Features Provided: SELF-SEALING
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Naval Sea Systems Command
Identification
  • NSN: 4730-01-514-6676
  • NIIN: 015146676
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6391450 FIND 021
  • Manufacturer: Naval Sea Systems Command
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-514-6676, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
NSN4730-01-514-6676
Primary Part Number6391450 FIND 021
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNaval Sea Systems Command
StatusACTIVE
Criticality Code JustificationFEAT
Style DesignatorMALE COUPLING HALF
Leg Length1.0875 INCHES NOMINAL IN
Features ProvidedSELF-SEALING
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeY
⇄ Related Items 5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4730-01-514-66796391450 FIND 024 POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
Possible match (shared part number)Naval Sea Systems Command
4730-01-514-66826391450 FIND 023 POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
Possible match (shared part number)Naval Sea Systems Command
4730-01-514-66856391450 FIND 022 POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
Possible match (shared part number)Naval Sea Systems Command
4730-01-514-70896391450 FIND 008 POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
Possible match (shared part number)Naval Sea Systems Command
3120-01-515-06096391450-1 POSSIBLE MATCH
BUSHING,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
6391450 FIND 021 PRIMARY Naval Sea Systems Command (USA)
6536K21 Mcmaster-Carr Supply Company (USA)
Reference documents
ReferenceMeaning
6391450 D/9 Drawing number reference only
Naval Sea Systems Command
Related Parts
4730-01-514-6679POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
6391450 FIND 024
4730-01-514-6682POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
6391450 FIND 023
4730-01-514-6685POSSIBLE MATCH
COUPLING HALF,QUICK DISCONNECT
6391450 FIND 022
4730-01-514-7089POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO HOSE
6391450 FIND 008
3120-01-515-0609POSSIBLE MATCH
BUSHING,SLEEVE
6391450-1

Frequently Asked Questions

What is NSN 4730-01-514-6676?

NSN 4730-01-514-6676 is a Coupling Half,quick Disconnect, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-514-6676?

NSN 4730-01-514-6676 has 2 manufacturer part numbers on file: 6391450 FIND 021 (Naval Sea Systems Command), 6536K21 (Mcmaster-Carr Supply Company).

What NSN replaces 4730-01-514-6676?

5 possible matches (shared part number, not a government interchangeability claim): 4730-01-514-6679, 4730-01-514-6682, 4730-01-514-6685. Verify interchangeability with system specifications before substitution.

What are the specifications of 6391450 FIND 021?

Key specifications for 6391450 FIND 021: Criticality Code Justification: FEAT; Style Designator: MALE COUPLING HALF; Overall Length: 2.360 INCHES NOMINAL IN; Leg Length: 1.0875 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-514-6676 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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