PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

661-1/4Link,detachable

Lockheed Martin Corporation · NSN 4010-01-579-2516 · FSC 4010 · No Item Name Available
Verified by PartsTable
NSN 4010-01-579-2516 — this item is cataloged by the U.S. Government under National Stock Number 4010-01-579-2516. Primary manufacturer part number: 661-1/4.
Features
  • Link,detachable — FSC 4010
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Link,detachable, cataloged under National Stock Number 4010-01-579-2516, is classified within Federal Supply Class 4010 (No Item Name Available) of the Rope, Cable, Chain, and Fittings group. The primary manufacturer of record is Lockheed Martin Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameLink,detachable
FSC / FSG4010 — No Item Name Available (FSG 40)
ManufacturersLockheed Martin Corporation (CAGE 0L1E5)
Technical Specifications
ParameterValue
NSN4010-01-579-2516
Primary Part Number661-1/4
Item NameLink,detachable
FSC / FSG4010 / 40 — No Item Name Available
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-291-455527044 INTERCHANGEABLE
Washer,flat
Briggs and Stratton Corp
5120-01-147-7881 INTERCHANGEABLE
Wrench,open End
6515-01-566-049166114 INTERCHANGEABLE
Cannula,venous
Medtronic Inc Dlp Div
Cross-Reference Index
Part NumberManufacturer
661-1/4 PRIMARY Lockheed Martin Corporation (USA)
Related Parts
5310-00-291-4555INTERCHANGEABLE
WASHER,FLAT
27044
5120-01-147-7881INTERCHANGEABLE
WRENCH,OPEN END
6515-01-566-0491INTERCHANGEABLE
CANNULA,VENOUS
66114

Frequently Asked Questions

What is NSN 4010-01-579-2516?

NSN 4010-01-579-2516 is a Link,detachable, manufactured by Lockheed Martin Corporation, classified under FSC 4010 (No Item Name Available). Status: active.

What are the part numbers for NSN 4010-01-579-2516?

NSN 4010-01-579-2516 has 1 cross-referenced part number: 661-1/4 (Lockheed Martin Corporation).

What NSN replaces 4010-01-579-2516?

There are 3 known substitutes for 4010-01-579-2516: 5310-00-291-4555, 5120-01-147-7881, 6515-01-566-0491. Verify interchangeability with system specifications before substitution.

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