PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SS4031Fitting

Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · NSN 4730-00-977-2770 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-977-2770 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-977-2770. Primary manufacturer part number: SS4031.
Features
  • Fitting — FSC 4730
  • 2 verified cross-references
  • Primary manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Fitting, cataloged under National Stock Number 4730-00-977-2770, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-977-2770
Primary Part NumberSS4031
Item NameFitting
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-888-67784-FF4-316 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
Parker-Hannifin Corporation Div Instrumentation Products Division
4730-01-017-1466 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
4730-01-052-0268SS-403-1 INTERCHANGEABLE
Ferrule,tube,front
Swagelok Co
3655-01-112-1287 INTERCHANGEABLE
Ferrule
4820-01-149-3260SS-403-1 INTERCHANGEABLE
Sleeve,valve
Swagelok Co
Cross-Reference Index
Part NumberManufacturer
SS4031 PRIMARY Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
SS4031 Rotair Aerospace Corp (USA)
Related Parts
4730-00-888-6778INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
4-FF4-316
4730-01-017-1466INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
4730-01-052-0268INTERCHANGEABLE
FERRULE,TUBE,FRONT
SS-403-1
3655-01-112-1287INTERCHANGEABLE
FERRULE
4820-01-149-3260INTERCHANGEABLE
SLEEVE,VALVE
SS-403-1

Frequently Asked Questions

What is NSN 4730-00-977-2770?

NSN 4730-00-977-2770 is a Fitting, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-977-2770?

NSN 4730-00-977-2770 has 2 cross-referenced part numbers: SS4031 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), SS4031 (Rotair Aerospace Corp).

What NSN replaces 4730-00-977-2770?

There are 5 known substitutes for 4730-00-977-2770: 4730-00-888-6778, 4730-01-017-1466, 4730-01-052-0268 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SS4031?

Key specifications for SS4031: End Item Identification: 44N HELICOPTER, LAMPS MARK III, SH-60B. 1 total characteristics are documented in the Federal Logistics Information System.

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