PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51861-22Screw,tapping

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-432-8027 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-432-8027 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-432-8027. Primary manufacturer part number: MS51861-22.
Features
  • Screw,tapping — FSC 5305
  • Nonmachine Nominal Thread Diameter: 0.138 INCHES IN
  • Features Provided: CASEHARDENED
  • Nondefinitive Spec/std Data: AB TYPE
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
  • Fastener Length: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-432-8027, is classified within Federal Supply Class 5305 (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 6 commercial cross-references from 5 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
NSN5305-00-432-8027
Primary Part NumberMS51861-22
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nonmachine Nominal Thread Diameter0.138 INCHES IN
Features ProvidedCASEHARDENED
Nondefinitive Spec/std DataAB TYPE
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
Fastener Length0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Nonmachine Thread StyleGIMLET POINT (TYPE A, AB OR BA)
Head StylePAN
Head Diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
Head Height0.087 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5305-00-052-8231 INTERCHANGEABLE
Screw,tapping
3655-00-174-1724560-040B INTERCHANGEABLE
Recharging Unit,carbon Dioxide,p
Hydro-Test Products, Inc. Dba Hydro-Test Products Inc
3455-00-250-07691727-0187 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
2940-00-910-141342111 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
4330-01-118-1639 INTERCHANGEABLE
Collar,split
4330-01-118-2028 INTERCHANGEABLE
Filter Body,fluid
5330-01-204-20350186352 INTERCHANGEABLE
Gasket
Dresser, Inc. Dba Dresser Roots Blowers & Compressors Div Dresser Roots
4820-01-313-5525N42111 INTERCHANGEABLE
Disk,valve
Leslie Controls, Inc. Dba Leslie Controls Inc
6110-01-399-8109LM323K STEELNS/NOPB-ND INTERCHANGEABLE
Regulator,voltage
Texas Instruments Incorporated
2530-01-593-600510-126 INTERCHANGEABLE
Valve,brake Pneumatic
Globe Trailer Manufacturing, Inc Dba Globe Trailers
Cross-Reference Index
Part NumberManufacturer
MS51861-22 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS107 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
125706 Army Weapons Command Attn Amswe-Ree-S (USA)
42111 Federal Screw Products, Inc. (USA)
MS24617-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
42111ADX Airdale Express Llc Div Airdale Express (USA)
Related Parts
5305-00-052-8231INTERCHANGEABLE
SCREW,TAPPING
3655-00-174-1724INTERCHANGEABLE
RECHARGING UNIT,CARBON DIOXIDE,P
560-040B
3455-00-250-0769INTERCHANGEABLE
CUTTER,MILLING,END
1727-0187
2940-00-910-1413INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
42111
4330-01-118-1639INTERCHANGEABLE
COLLAR,SPLIT
4330-01-118-2028INTERCHANGEABLE
FILTER BODY,FLUID
5330-01-204-2035INTERCHANGEABLE
GASKET
0186352
4820-01-313-5525INTERCHANGEABLE
DISK,VALVE
N42111
6110-01-399-8109INTERCHANGEABLE
REGULATOR,VOLTAGE
LM323K STEELNS/NOPB-ND
2530-01-593-6005INTERCHANGEABLE
VALVE,BRAKE PNEUMATIC
10-126

Frequently Asked Questions

What is NSN 5305-00-432-8027?

NSN 5305-00-432-8027 is a Screw,tapping, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-432-8027?

NSN 5305-00-432-8027 has 6 cross-referenced part numbers: MS51861-22 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), FFS107 (Federal Specifications Promulgated by General Services Administration Washington DC), 125706 (Army Weapons Command Attn Amswe-Ree-S), 42111 (Federal Screw Products, Inc.), MS24617-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5305-00-432-8027?

There are 10 known substitutes for 5305-00-432-8027: 5305-00-052-8231, 3655-00-174-1724, 3455-00-250-0769 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51861-22?

Key specifications for MS51861-22: Nonmachine Nominal Thread Diameter: 0.138 INCHES IN; Features Provided: CASEHARDENED; Nondefinitive Spec/std Data: AB TYPE; Surface Treatment: CADMIUM AND CHROMATE OVERALL. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-432-8027 still in active supply?

NSN 5305-00-432-8027 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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