PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90949Lock Bar Return Spring Retaining

Sage International Ltd · NSN 1005-01-556-3016 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-556-3016 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-556-3016. Primary manufacturer part number: 90949.
Features
  • Lock Bar Return Spring Retaining — FSC 1005
  • 1 verified cross-reference
  • Primary manufacturer: Sage International Ltd
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Lock Bar Return Spring Retaining, cataloged under National Stock Number 1005-01-556-3016, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Sage International Ltd. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-556-3016
Primary Part Number90949
Item NameLock Bar Return Spring Retaining
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerSage International Ltd
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-278-88731074 INTERCHANGEABLE
Adapter,straight,tube to Boss
Danfoss Power Solutions II, Llc
5826-00-676-1804 INTERCHANGEABLE
Arm Assy
Cross-Reference Index
Part NumberManufacturer
90949 PRIMARY Sage International Ltd (USA)
Related Parts
4730-00-278-8873INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
1074
5826-00-676-1804INTERCHANGEABLE
ARM ASSY

Frequently Asked Questions

What is NSN 1005-01-556-3016?

NSN 1005-01-556-3016 is a Lock Bar Return Spring Retaining, manufactured by Sage International Ltd, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-556-3016?

NSN 1005-01-556-3016 has 1 cross-referenced part number: 90949 (Sage International Ltd).

What NSN replaces 1005-01-556-3016?

There are 2 known substitutes for 1005-01-556-3016: 4730-00-278-8873, 5826-00-676-1804. Verify interchangeability with system specifications before substitution.

What are the specifications of 90949?

Key specifications for 90949: End Item Identification: 1005-01-553-5196 M39 ENHANCED MARKSMAN RIFLE; Part Name Assigned by Controlling Agency: LOCK BAR RETURN SPRING RETAINING CUP. 2 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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