PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51831-108Insert,screw Thread

Zf Industrieantriebe Witten Gmbh · NSN 5325-00-185-1879 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-185-1879 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-185-1879. Primary manufacturer part number: MS51831-108.
Features
  • Insert,screw Thread — FSC 5325
  • Length: 0.875 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 11
  • Nominal Thread Size: 0.625 INCHES IN
  • Insert Size: 7/8 IN.-14 UNF,CLASS 2A A
  • Internal Thread Relief Depth: 0.100 INCHES NOMINAL IN
  • Material: STEEL COMP 302 OVERALL
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Insert,screw Thread, cataloged under National Stock Number 5325-00-185-1879, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-185-1879
Primary Part NumberMS51831-108
Item NameInsert,screw Thread
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerZf Industrieantriebe Witten Gmbh
StatusCANCELLED
Length0.875 INCHES NOMINAL IN
Thread Quantity Per Inch11
Nominal Thread Size0.625 INCHES IN
Insert Size7/8 IN.-14 UNF,CLASS 2A A
Internal Thread Relief Depth0.100 INCHES NOMINAL IN
MaterialSTEEL COMP 302 OVERALL
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Full Internal Thread Length0.775 INCHES NOMINAL IN
Thread Series DesignatorUNJC
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread Class3B
Style DesignatorKEYLOCK
Thread Length0.775 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5325-01-083-0965 INTERCHANGEABLE
Insert,screw Thread
Cross-Reference Index
Part NumberManufacturer
MS51831-108 Zf Industrieantriebe Witten Gmbh (DEU)
KH9905-1011 Howmet Global Fastening Systems Inc. Div Microdot Products (USA)
NAS1395C10 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
CL-5811-SKS Carr Lane Manufacturing Co (USA)
KNH1011 Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
5340001851879 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
MS51831-108 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KNH1011J Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
MS51831-10 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5325-01-083-0965INTERCHANGEABLE
INSERT,SCREW THREAD

Frequently Asked Questions

What is NSN 5325-00-185-1879?

NSN 5325-00-185-1879 is a Insert,screw Thread, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-185-1879?

NSN 5325-00-185-1879 has 9 cross-referenced part numbers: MS51831-108 (Zf Industrieantriebe Witten Gmbh), KH9905-1011 (Howmet Global Fastening Systems Inc. Div Microdot Products), NAS1395C10 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), CL-5811-SKS (Carr Lane Manufacturing Co), KNH1011 (Howmet Global Fastening Systems Inc. Div Tridair Products) and 4 more.

What NSN replaces 5325-00-185-1879?

There is 1 known substitute for 5325-00-185-1879: 5325-01-083-0965. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51831-108?

Key specifications for MS51831-108: Length: 0.875 INCHES NOMINAL IN; Thread Quantity Per Inch: 11; End Item Identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV); Nominal Thread Size: 0.625 INCHES IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-185-1879 still in active supply?

NSN 5325-00-185-1879 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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