PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HL51-8-8Pin-Rivet

Hi-Shear Corporation · NSN 5320-00-885-9243 · FSC 5320 · No Item Name Available
Verified by PartsTable
NSN 5320-00-885-9243 — this item is cataloged by the U.S. Government under National Stock Number 5320-00-885-9243. Primary manufacturer part number: HL51-8-8.
Features
  • Pin-Rivet — FSC 5320
  • Material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
  • Material Document and Classification: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
  • Nominal Thread Size: 0.250 INCHES IN
  • Surface Treatment: CADMIUM OVERALL
  • Shank Diameter: 0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Comp E4340 or Steel Comp 4340 or Steel Comp 4140 or Steel Comp 8740 Overall construction
General Description

The Pin-Rivet, cataloged under National Stock Number 5320-00-885-9243, is classified within Federal Supply Class 5320 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hi-Shear Corporation. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5320-00-885-9243
Primary Part NumberHL51-8-8
Item NamePin-Rivet
FSC / FSG5320 / 53 — No Item Name Available
ManufacturerHi-Shear Corporation
StatusACTIVE
MaterialSTEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
Material Document and ClassificationMIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF)
Nominal Thread Size0.250 INCHES IN
Surface TreatmentCADMIUM OVERALL
Shank Diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Shank StylePIN-RIVET, STRAIGHT, THREADED
Thread Class3A A
Thread DirectionRIGHT-HAND
Width Between Flats0.095 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN
Head Major Diameter0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
Minimum Tensile Strength160000 POUNDS PER SQUARE INCH LBS
Head StyleFLUSH COUNTERSUNK
Countersink Angle100.0 DEGREES NOMINAL
Grip Length0.505 INCHES MAXIMUM IN
Fastener Length0.915 INCHES MINIMUM AND 0.935 INCHES MAXIMUM IN
Shear Strength95000 SINGLE POUNDS PER SQUARE INCH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-885-9245MF7231-08 INTERCHANGEABLE
Nut,self-Locking,clinch
Howmet Global Fastening Systems Inc
Cross-Reference Index
Part NumberManufacturer
HL51-8-8 PRIMARY Hi-Shear Corporation (USA)
Related Parts
5310-00-885-9245INTERCHANGEABLE
NUT,SELF-LOCKING,CLINCH
MF7231-08

Frequently Asked Questions

What is NSN 5320-00-885-9243?

NSN 5320-00-885-9243 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320 (No Item Name Available). Status: active.

What are the part numbers for NSN 5320-00-885-9243?

NSN 5320-00-885-9243 has 1 cross-referenced part number: HL51-8-8 (Hi-Shear Corporation).

What NSN replaces 5320-00-885-9243?

There is 1 known substitute for 5320-00-885-9243: 5310-00-885-9245. Verify interchangeability with system specifications before substitution.

What are the specifications of HL51-8-8?

Key specifications for HL51-8-8: Material: STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL; Material Document and Classification: MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF). 18 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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