PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31912Adapter Rail,weapon Mounted

Charles Reed Knight Jr Dba Knight's Armament Company · NSN 1005-01-687-9101 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-01-687-9101 — this item is cataloged by the U.S. Government under National Stock Number 1005-01-687-9101. Primary manufacturer part number: 31912.
Features
  • Adapter Rail,weapon Mounted — FSC 1005
  • 3 verified cross-references
  • Primary manufacturer: Charles Reed Knight Jr Dba Knight's Armament Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter Rail,weapon Mounted, cataloged under National Stock Number 1005-01-687-9101, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Charles Reed Knight Jr Dba Knight's Armament Company. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-01-687-9101
Primary Part Number31912
Item NameAdapter Rail,weapon Mounted
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerCharles Reed Knight Jr Dba Knight's Armament Company
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-075-568423-411-12 INTERCHANGEABLE
Adapter,straight,tube to Hose
Hydrasearch Company, Llc
5310-01-261-1797319-12 INTERCHANGEABLE
Washer,flat
Chicago Faucet Co the
5940-01-598-906131912 INTERCHANGEABLE
Terminal,quick Disconnect
Waytek Inc
6515-01-608-7955JBC-WBK-01-STD INTERCHANGEABLE
Burn Care Kit,medical
Jbc Corp
Cross-Reference Index
Part NumberManufacturer
ZAX0431912 Nioa Trading Nioa Nominees Pty Limited Div Nioa (AUS)
31912 PRIMARY Charles Reed Knight Jr Dba Knight's Armament Company (USA)
31912 Tecnodife Srl (ITA)
Related Parts
4730-00-075-5684INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
23-411-12
5310-01-261-1797INTERCHANGEABLE
WASHER,FLAT
319-12
5940-01-598-9061INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
31912
6515-01-608-7955INTERCHANGEABLE
BURN CARE KIT,MEDICAL
JBC-WBK-01-STD

Frequently Asked Questions

What is NSN 1005-01-687-9101?

NSN 1005-01-687-9101 is a Adapter Rail,weapon Mounted, manufactured by Charles Reed Knight Jr Dba Knight's Armament Company, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-01-687-9101?

NSN 1005-01-687-9101 has 3 cross-referenced part numbers: ZAX0431912 (Nioa Trading Nioa Nominees Pty Limited Div Nioa), 31912 (Charles Reed Knight Jr Dba Knight's Armament Company), 31912 (Tecnodife Srl).

What NSN replaces 1005-01-687-9101?

There are 4 known substitutes for 1005-01-687-9101: 4730-00-075-5684, 5310-01-261-1797, 5940-01-598-9061 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31912?

Key specifications for 31912: Part Name Assigned by Controlling Agency: ACCESSORY RAIL SECTION. 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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