PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51858-5Nut,plain,hexagon

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5310-01-012-7400 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-012-7400 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-012-7400. Primary manufacturer part number: MS51858-5.
Features
  • Nut,plain,hexagon — FSC 5310
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 13 STYLE
  • Material Document and Classification: ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Bearing Surface Type: CHAMFERED
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.190 INCHES IN
  • Thread Quantity Per Inch: 20
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-012-7400, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-012-7400
Primary Part NumberMS51858-5
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Nondefinitive Spec/std Data2 TYPE AND 13 STYLE
Material Document and ClassificationASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Bearing Surface TypeCHAMFERED
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.190 INCHES IN
Thread Quantity Per Inch20
Width Across Flats0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Nut Height0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Nut StyleHEXAGON
Thread DirectionRIGHT-HAND
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3110-00-100-369002872 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5950-00-249-317915361 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
3020-00-267-187780 O/L INTERCHANGEABLE
Link,roller Chain
Emerson Electric Co Browning Mfg Div
5950-01-101-702415361 INTERCHANGEABLE
Coil,radio Frequency
Hammond Mfg Co Ltd
4320-01-194-270715361 INTERCHANGEABLE
Guide,poppet,pump
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5305-01-548-318539172 INTERCHANGEABLE
Screw,cap,hexagon Head
Barnes Group Inc. Dba Barnes Distribution
5970-01-694-235615361 INTERCHANGEABLE
Insulation Sheet,electrical
Cepeda Associates, Inc. Dba Cepeda Associates Inc
Cross-Reference Index
Part NumberManufacturer
MS51858-5 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FF-N-836 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
002-004176-005 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA)
15361 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
3110-00-100-3690INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
02872
5950-00-249-3179INTERCHANGEABLE
TRANSFORMER,POWER
15361
3020-00-267-1877INTERCHANGEABLE
LINK,ROLLER CHAIN
80 O/L
5950-01-101-7024INTERCHANGEABLE
COIL,RADIO FREQUENCY
15361
4320-01-194-2707INTERCHANGEABLE
GUIDE,POPPET,PUMP
15361
5305-01-548-3185INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
39172
5970-01-694-2356INTERCHANGEABLE
INSULATION SHEET,ELECTRICAL
15361

Frequently Asked Questions

What is NSN 5310-01-012-7400?

NSN 5310-01-012-7400 is a Nut,plain,hexagon, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-012-7400?

NSN 5310-01-012-7400 has 4 cross-referenced part numbers: MS51858-5 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FF-N-836 (Federal Specifications Promulgated by General Services Administration Washington DC), 002-004176-005 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple), 15361 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 5310-01-012-7400?

There are 7 known substitutes for 5310-01-012-7400: 3110-00-100-3690, 5950-00-249-3179, 3020-00-267-1877 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51858-5?

Key specifications for MS51858-5: Material: PLASTIC POLYAMIDE NYLON OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 13 STYLE; Material Document and Classification: ASTM D4066 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Bearing Surface Type: CHAMFERED. 12 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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