PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS16556-866Pin,straight,headless

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5315-01-145-5576 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-01-145-5576 — this item is cataloged by the U.S. Government under National Stock Number 5315-01-145-5576. Primary manufacturer part number: MS16556-866.
Features
  • Pin,straight,headless — FSC 5315
  • First End Taper Length: 0.601 INCHES NOMINAL IN
  • Pin Overall Diameter: 0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM AND CHROMATE OR CADMIUM OR TIN OR ZINC OR CADMIUM AND PHOSPHATE OR TIN AND CHROMATE OR ZINC AND CHROMATE OR TIN AND PHOSPHATE OR ZINC AND PHOSPHATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562 MIL SPEC ALL TREATMENT RESPONSES OVERALL
  • First End Taper Angle: 4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
  • Hardness Rating: 60.0 ROCKWELL C MINIMUM OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Pin,straight,headless, cataloged under National Stock Number 5315-01-145-5576, is classified within Federal Supply Class 5315 (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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-01-145-5576
Primary Part NumberMS16556-866
Item NamePin,straight,headless
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
First End Taper Length0.601 INCHES NOMINAL IN
Pin Overall Diameter0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM AND CHROMATE OR CADMIUM OR TIN OR ZINC OR CADMIUM AND PHOSPHATE OR TIN AND CHROMATE OR ZINC AND CHROMATE OR TIN AND PHOSPHATE OR ZINC AND PHOSPHATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR MIL-C-81562 MIL SPEC ALL TREATMENT RESPONSES OVERALL
First End Taper Angle4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
Hardness Rating60.0 ROCKWELL C MINIMUM OVERALL
Second End StyleRADIUS
Pin Overall Length2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN
First End StyleCHAMFERED
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Second End Corner Radius0.047 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
Second End Relationship with First EndNOT IDENTICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5970-00-322-648216361 INTERCHANGEABLE
Insulator,tube
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
6210-00-617-0947 INTERCHANGEABLE
Light,indicator
3110-00-962-705216361 INTERCHANGEABLE
Bearing,line
Curtiss-Wright Electro-Mechanical Corporation Div Epd
2910-00-980-232016361 INTERCHANGEABLE
Cover Assembly,gove
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5930-01-419-613416-361 INTERCHANGEABLE
Switch Subassembly
Custom Control Sensors, Llc
6515-01-591-5200323.055 INTERCHANGEABLE
Sleeve,wire,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
MS16556-866 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
1636-1 Tate Andale, Llc (USA)
Related Parts
5970-00-322-6482INTERCHANGEABLE
INSULATOR,TUBE
16361
6210-00-617-0947INTERCHANGEABLE
LIGHT,INDICATOR
3110-00-962-7052INTERCHANGEABLE
BEARING,LINE
16361
2910-00-980-2320INTERCHANGEABLE
COVER ASSEMBLY,GOVE
16361
5930-01-419-6134INTERCHANGEABLE
SWITCH SUBASSEMBLY
16-361
6515-01-591-5200INTERCHANGEABLE
SLEEVE,WIRE,BONE
323.055

Frequently Asked Questions

What is NSN 5315-01-145-5576?

NSN 5315-01-145-5576 is a Pin,straight,headless, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-01-145-5576?

NSN 5315-01-145-5576 has 2 cross-referenced part numbers: MS16556-866 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 1636-1 (Tate Andale, Llc).

What NSN replaces 5315-01-145-5576?

There are 6 known substitutes for 5315-01-145-5576: 5970-00-322-6482, 6210-00-617-0947, 3110-00-962-7052 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS16556-866?

Key specifications for MS16556-866: First End Taper Length: 0.601 INCHES NOMINAL IN; Pin Overall Diameter: 0.3759 INCHES MINIMUM AND 0.3761 INCHES MAXIMUM IN; Material: STEEL OVERALL; Surface Treatment: CADMIUM AND CHROMATE OR CADMIUM OR TIN OR ZINC OR CADMIUM AND PHOSPHATE OR TIN AND CHROMATE OR ZINC AND CHROMATE OR TIN AND PHOSPHATE OR ZINC AND PHOSPHATE OVERALL. 14 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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