PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

27-8-4Swivel,link and Link

Lockheed Martin Corporation Div Rotary and Mission Systems · NSN 4030-00-530-3930 · FSC 4030 · No Item Name Available
Verified by PartsTable
NSN 4030-00-530-3930 — this item is cataloged by the U.S. Government under National Stock Number 4030-00-530-3930. Primary manufacturer part number: 27-8-4.
Features
  • Swivel,link and Link — FSC 4030
  • Effective Length: 0.938 INCHES NOMINAL IN
  • Style Designator: OVAL ENDS
  • Fabrication Method: DROP FORGED
  • Accommodated Material Diameter: 0.250 INCHES NOMINAL IN
  • Surface Treatment: ZINC
  • Inside Width: 0.750 INCHES NOMINAL IN
  • Reach Length: 2.875 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Swivel,link and Link, cataloged under National Stock Number 4030-00-530-3930, is classified within Federal Supply Class 4030 (No Item Name Available) of the Rope, Cable, Chain, and Fittings group. The primary manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4030-00-530-3930
Primary Part Number27-8-4
Item NameSwivel,link and Link
FSC / FSG4030 / 40 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rotary and Mission Systems
StatusACTIVE
Effective Length0.938 INCHES NOMINAL IN
Style DesignatorOVAL ENDS
Fabrication MethodDROP FORGED
Accommodated Material Diameter0.250 INCHES NOMINAL IN
Surface TreatmentZINC
Inside Width0.750 INCHES NOMINAL IN
Reach Length2.875 INCHES NOMINAL IN
Material Diameter0.250 INCHES NOMINAL IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-045-6397 INTERCHANGEABLE
Connector,receptacle,electrical
5998-00-122-88752784 INTERCHANGEABLE
Circuit Card Assembly
Mission Systems Davenport Inc.
5330-00-251-3228S1955 INTERCHANGEABLE
Gasket
Cummins Inc.
4940-00-391-4550 INTERCHANGEABLE
Casing,cylinder
5365-00-401-2046AAL-2282 INTERCHANGEABLE
Spacer,sleeve
Stant Mfg Co Inc
5935-00-864-5095200X302-400 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
1630-00-998-7934278-4 INTERCHANGEABLE
Plate Assy,torque
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5330-01-124-61822784 INTERCHANGEABLE
Seal
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
4540-01-143-55912784 INTERCHANGEABLE
Heater,right Hand
Cox & Company, Inc. Dba Cox & Co Inc
2940-01-182-179542784 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
Cross-Reference Index
Part NumberManufacturer
676 1-4 North and Judd Inc Wilcox-Crittenden Div (USA)
27-8-4 PRIMARY Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
Related Parts
5935-00-045-6397INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5998-00-122-8875INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2784
5330-00-251-3228INTERCHANGEABLE
GASKET
S1955
4940-00-391-4550INTERCHANGEABLE
CASING,CYLINDER
5365-00-401-2046INTERCHANGEABLE
SPACER,SLEEVE
AAL-2282
5935-00-864-5095INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
200X302-400
1630-00-998-7934INTERCHANGEABLE
PLATE ASSY,TORQUE
278-4
5330-01-124-6182INTERCHANGEABLE
SEAL
2784
4540-01-143-5591INTERCHANGEABLE
HEATER,RIGHT HAND
2784
2940-01-182-1795INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42784
3020-01-198-3135INTERCHANGEABLE
SPROCKET WHEEL
6145-01-208-0559INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
278-4

Frequently Asked Questions

What is NSN 4030-00-530-3930?

NSN 4030-00-530-3930 is a Swivel,link and Link, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4030 (No Item Name Available). Status: active.

What are the part numbers for NSN 4030-00-530-3930?

NSN 4030-00-530-3930 has 2 cross-referenced part numbers: 676 1-4 (North and Judd Inc Wilcox-Crittenden Div), 27-8-4 (Lockheed Martin Corporation Div Rotary and Mission Systems).

What NSN replaces 4030-00-530-3930?

There are 12 known substitutes for 4030-00-530-3930: 5935-00-045-6397, 5998-00-122-8875, 5330-00-251-3228 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 27-8-4?

Key specifications for 27-8-4: Effective Length: 0.938 INCHES NOMINAL IN; Style Designator: OVAL ENDS; Fabrication Method: DROP FORGED; Accommodated Material Diameter: 0.250 INCHES NOMINAL IN. 9 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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