NSN 5320-01-643-5287 — this item is cataloged by the U.S. Government under National Stock Number 5320-01-643-5287. Manufacturer of record part number: HLT252DL-8-21.
Shank Diameter: 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN
Head Height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
Fastener Length: 1.748 INCHES NOMINAL IN
Thread Direction: RIGHT-HAND
Nominal Thread Size: 0.250 INCHES IN
Grip Length: 1.313 INCHES NOMINAL IN
Width Between Flats: 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Identification
NSN: 5320-01-643-5287
NIIN: 016435287
FSC: 5320 — Rivets
FSG: 53 — Hardware and Abrasives
Primary part number: HLT252DL-8-21
Manufacturer: Hi-Shear Corporation
General Description
The Pin-Rivet, cataloged under National Stock Number 5320-01-643-5287, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5320-01-643-5287
Primary Part Number
HLT252DL-8-21
Item Name
Pin-Rivet
FSC / FSG
5320 / 53 — Rivets
Manufacturer
Hi-Shear Corporation
Status
ACTIVE
Shank Diameter
0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN
Head Height
0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
Fastener Length
1.748 INCHES NOMINAL IN
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.250 INCHES IN
Grip Length
1.313 INCHES NOMINAL IN
Width Between Flats
0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Shank Style
PIN-RIVET, STRAIGHT, THREADED
Thread Class
3A A
Thread Quantity Per Inch
28
Material
STEEL CORROSION RESISTING OVERALL
Thread Series Designator
UNIFIED NATIONAL JOINT FINE (UNJF)
Head Major Diameter
0.435 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5320-01-643-5293HLT252DL-8-22POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-643-5360HLT252DL-8-23POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-696-5012HLT252DL-10-16POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-696-5023HLT252DL-10-15POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-696-5037HLT252DL-10-18POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-696-5080HLT252DL-10-17POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
5320-01-696-7541HLT252DL-10-20POSSIBLE MATCH
PIN-RIVET
Possible match (shared part number)Hi-Shear Corporation
NSN 5320-01-643-5287 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
What part numbers are listed for NSN 5320-01-643-5287?
NSN 5320-01-643-5287 has 1 manufacturer part number on file: HLT252DL-8-21 (Hi-Shear Corporation).
What NSN replaces 5320-01-643-5287?
7 possible matches (shared part number, not a government interchangeability claim): 5320-01-643-5293, 5320-01-643-5360, 5320-01-696-5012. Verify interchangeability with system specifications before substitution.
What are the specifications of HLT252DL-8-21?
Key specifications for HLT252DL-8-21: Shank Diameter: 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN; Head Height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Fastener Length: 1.748 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 13 specifications are documented in the U.S. Government catalog.
Is NSN 5320-01-643-5287 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.