PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51971-8 3/4-1 0UNC-2B CRESNut,plain,hexagon

Zf Industrieantriebe Witten Gmbh · NSN 5310-00-924-5897 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-924-5897 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-924-5897. Primary manufacturer part number: MS51971-8 3/4-1 0UNC-2B CRES.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.750 INCHES IN
  • Thread Quantity Per Inch: 10
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Width Across Flats: 1.0880 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 or Steel Comp 304 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-924-5897, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-924-5897
Primary Part NumberMS51971-8 3/4-1 0UNC-2B CRES
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerZf Industrieantriebe Witten Gmbh
StatusCANCELLED
Nut StyleHEXAGON
Nominal Thread Size0.750 INCHES IN
Thread Quantity Per Inch10
Bearing Surface TypeCHAMFERED OR WASHER FACED
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Width Across Flats1.0880 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Class2B
Material Document and ClassificationSTD66JGCAISIJGDSAE ASSN STD 1ST MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 303 OR STEEL COMP 304 OVERALL
Surface TreatmentPASSIVATE OVERALL
Nut Height0.617 INCHES MINIMUM AND 0.665 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5331-00-441-985551000-7 INTERCHANGEABLE
O-Ring
Marvel Engineering Company Inc
5310-00-584-7799MS15795-822 INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-934-9727 INTERCHANGEABLE
Nut,plain,hexagon
5310-00-937-0454MS35338-146 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-01-470-18872151695-1 INTERCHANGEABLE
Nut,plain,hexagon
Fairbanks Morse, Llc
3130-01-550-7052 INTERCHANGEABLE
Bearing Unit,plain
5331-01-560-6772510-007 INTERCHANGEABLE
O-Ring
Kirby Morgan Dive Systems Inc
3530-01-564-6232510007 INTERCHANGEABLE
Bobbin,sewing Machine
Singer Industrial Sewing Products Co Cutters Exchange Div
5310-01-567-7595MS51971-8 INTERCHANGEABLE
Nut,plain,hexagon
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
6210-01-701-8429510007 INTERCHANGEABLE
Lens,light
Betts Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
MS51971-8 3/4-1 0UNC-2B CRES Zf Industrieantriebe Witten Gmbh (DEU)
5310PL0682801 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MILS1222 3/4-10 UNC 2B CARBON S Zf Industrieantriebe Witten Gmbh (DEU)
2151695 Zf Industrieantriebe Witten Gmbh (DEU)
510007 Zf Industrieantriebe Witten Gmbh (DEU)
G421085-12 Raytheon Company Div Corp (USA)
MS51971-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NUT-S-001419 Lockheed Martin Corporation Dba Lockheed Martin Aerostructures Div Rms (USA)
MILS1222 3/4-10 UNC 2B CARBON S Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
145-4510955-50 Rohr, Inc. Dba Rohr Industries Inc Div Rohr Inc., a Part of Collins Aerospace (USA)
6391395 Naval Sea Systems Command (USA)
LD626139-40 Zf Industrieantriebe Witten Gmbh (DEU)
810-12851-0310 PC NO 333 Bath Iron Works Corporation (USA)
596-6391395 FIND 17 Naval Sea Systems Command (USA)
8100-1251-0192 PC 198 Bath Iron Works Corporation (USA)
Related Parts
5331-00-441-9855INTERCHANGEABLE
O-RING
51000-7
5310-00-584-7799INTERCHANGEABLE
WASHER,FLAT
MS15795-822
5310-00-934-9727INTERCHANGEABLE
NUT,PLAIN,HEXAGON
5310-00-937-0454INTERCHANGEABLE
WASHER,LOCK
MS35338-146
5310-01-470-1887INTERCHANGEABLE
NUT,PLAIN,HEXAGON
2151695-1
3130-01-550-7052INTERCHANGEABLE
BEARING UNIT,PLAIN
5331-01-560-6772INTERCHANGEABLE
O-RING
510-007
3530-01-564-6232INTERCHANGEABLE
BOBBIN,SEWING MACHINE
510007
5310-01-567-7595INTERCHANGEABLE
NUT,PLAIN,HEXAGON
MS51971-8
6210-01-701-8429INTERCHANGEABLE
LENS,LIGHT
510007

Frequently Asked Questions

What is NSN 5310-00-924-5897?

NSN 5310-00-924-5897 is a Nut,plain,hexagon, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-924-5897?

NSN 5310-00-924-5897 has 15 cross-referenced part numbers: MS51971-8 3/4-1 0UNC-2B CRES (Zf Industrieantriebe Witten Gmbh), 5310PL0682801 (Jednolity Indeks Materialowy - Uniform Material Index), MILS1222 3/4-10 UNC 2B CARBON S (Zf Industrieantriebe Witten Gmbh), 2151695 (Zf Industrieantriebe Witten Gmbh), 510007 (Zf Industrieantriebe Witten Gmbh) and 10 more.

What NSN replaces 5310-00-924-5897?

There are 10 known substitutes for 5310-00-924-5897: 5331-00-441-9855, 5310-00-584-7799, 5310-00-934-9727 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51971-8 3/4-1 0UNC-2B CRES?

Key specifications for MS51971-8 3/4-1 0UNC-2B CRES: Nut Style: HEXAGON; Nominal Thread Size: 0.750 INCHES IN; Thread Quantity Per Inch: 10; Bearing Surface Type: CHAMFERED OR WASHER FACED. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-924-5897 still in active supply?

NSN 5310-00-924-5897 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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