NSN 5315-01-646-2255 · NIIN 016462255 · Part number 588-7666739 ITEM 16
Naval Sea Systems Command · FSC 5315 — Nails, Machine Keys, and Pins · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5315-01-646-2255 — this item is cataloged by the U.S. Government under National Stock Number 5315-01-646-2255. Manufacturer of record part number: 588-7666739 ITEM 16.
Also searched as5315-01-646-2255 ·
5315016462255 ·
NIIN 016462255 ·
01-646-2255 ·
FSC 5315 Nails, Machine Keys, and Pins · CAGE 53711 · 588-7666739 ITEM 16 · 588-7666739
The Pin,shoulder,headed, cataloged under National Stock Number 5315-01-646-2255, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
5315-01-646-2255
Primary Part Number
588-7666739 ITEM 16
Item Name
Pin,shoulder,headed
FSC / FSG
5315 / 53 — Nails, Machine Keys, and Pins
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
First End Taper Length
0.050 INCHES NOMINAL IN
First Step Diameter
0.555 INCHES NOMINAL IN
Third Step Diameter
0.375 INCHES NOMINAL IN
Under Head Length
5.360 INCHES NOMINAL IN
First End Style
CHAMFERED
Second Step Length
0.900 INCHES NOMINAL IN
Style Designator
SHOULDER
Pin Head Diameter
1.000 INCHES NOMINAL IN
Material Document and Classification
ASTM A276, TY 304, COND B, FIN CF ASSN STD SINGLE MATERIAL RESPONSE OVERALL
First End Taper Angle
45.0 DEGREES NOMINAL
Head Style
PAN NO. 2 (R1 NOT REQUIRED IN ITEM DESCRIPTION)
Second Step Diameter
0.500 INCHES NOMINAL IN
Height
0.190 INCHES NOMINAL IN
First Step Length
3.755 INCHES NOMINAL IN
Material
STEEL COMP 304 OVERALL
Third Step Length
0.570 INCHES NOMINAL 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.
5315-01-646-3067588-7666739 ITEM 20POSSIBLE MATCH
PIN,COTTER
Possible match (shared part number)Naval Sea Systems Command
5310-01-648-2010588-7666739 ASSY 99,IT 34POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Naval Sea Systems Command
5310-01-648-2021588-7666739 ASSY 99,IT 32POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Naval Sea Systems Command
5310-01-648-2051588-7666739 ASSY 99,IT 30POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)Naval Sea Systems Command
3040-01-654-7028588-7666739 ASSY 99POSSIBLE MATCH
LEVER ASSEMBLY,MANUAL CONTROL
Possible match (shared part number)Naval Sea Systems Command
3020-01-654-713615892742POSSIBLE MATCH
PULLEY,GROOVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-675-4234588-7666739 ASSY 98POSSIBLE MATCH
LEVER ASSEMBLY,MANUAL CONTROL
Possible match (shared part number)Naval Sea Systems Command
NSN 5315-01-646-2255 is a Pin,shoulder,headed, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
What part numbers are listed for NSN 5315-01-646-2255?
NSN 5315-01-646-2255 has 1 manufacturer part number on file: 588-7666739 ITEM 16 (Naval Sea Systems Command).
What NSN replaces 5315-01-646-2255?
7 possible matches (shared part number, not a government interchangeability claim): 5315-01-646-3067, 5310-01-648-2010, 5310-01-648-2021. Verify interchangeability with system specifications before substitution.
What are the specifications of 588-7666739 ITEM 16?
Key specifications for 588-7666739 ITEM 16: First End Taper Length: 0.050 INCHES NOMINAL IN; First Step Diameter: 0.555 INCHES NOMINAL IN; Third Step Diameter: 0.375 INCHES NOMINAL IN; Under Head Length: 5.360 INCHES NOMINAL IN. 16 specifications are documented in the U.S. Government catalog.
Is NSN 5315-01-646-2255 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.