NSN 5310-01-356-7215 · NIIN 013567215 · Part number 845-6655309 ITEM 20-1
Naval Sea Systems Command · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 53711
Government record, cited
NSN 5310-01-356-7215 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-356-7215. Manufacturer of record part number: 845-6655309 ITEM 20-1.
The Nut,plain,round, cataloged under National Stock Number 5310-01-356-7215, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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
5310-01-356-7215
Primary Part Number
845-6655309 ITEM 20-1
Item Name
Nut,plain,round
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Thread Series
UNIFIED NATIONAL COARSE (UNC)
Thread Direction
RIGHT-HAND
Nominal Thread Size
0.375 INCHES IN
Nut Diameter
0.796 INCHES NOMINAL IN
Nut Thickness
0.380 INCHES NOMINAL IN
Drive Point Diameter
0.094 INCHES NOMINAL IN
Drive Point Quantity
2
Nut Style
ROUND
Thread Class
2B
Thread Quantity Per Inch
16
Material
STEEL OVERALL
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 Items12
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5355-01-475-0421845-6655309 ITEM 19-3POSSIBLE MATCH
KNOB
Possible match (shared part number)Naval Sea Systems Command
5365-01-475-0787845-6655309 ITEM 15-1POSSIBLE MATCH
SPACER,PLATE
Possible match (shared part number)Naval Sea Systems Command
4820-01-475-3957SSBL-54NPOSSIBLE MATCH
PLUNGER BALL
Possible match (shared part number)Hutchinson Aerospace & Industry, Inc. Dba Barry Wright Corp
4820-01-475-3992845-6655309 ITEM 5-1POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-475-4033845-6655309 ITEM 6-1POSSIBLE MATCH
BALL GUIDE
Possible match (shared part number)Naval Sea Systems Command
4820-01-475-4040845-6655309 ITEM 1-1POSSIBLE MATCH
SEAT GUIDE
Possible match (shared part number)Naval Sea Systems Command
3040-01-475-6622845-6655309 ITEM 5-2POSSIBLE MATCH
CONNECTING LINK,RIGID
Possible match (shared part number)Naval Sea Systems Command
5315-01-477-6788845-6655309 ITEM 2-2POSSIBLE MATCH
PIN,GROOVED,HEADED
Possible match (shared part number)Naval Sea Systems Command
5315-01-477-6791845-6655309 ITEM 3-2POSSIBLE MATCH
PIN,GROOVED,HEADED
Possible match (shared part number)Naval Sea Systems Command
5315-01-477-76742640-682-09 ITEM 20-2POSSIBLE MATCH
PIN,STRAIGHT,HEADED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
NSN 5310-01-356-7215 is a Nut,plain,round, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-356-7215?
NSN 5310-01-356-7215 has 1 manufacturer part number on file: 845-6655309 ITEM 20-1 (Naval Sea Systems Command).
What NSN replaces 5310-01-356-7215?
12 possible matches (shared part number, not a government interchangeability claim): 5355-01-475-0421, 5365-01-475-0787, 4820-01-475-3957. Verify interchangeability with system specifications before substitution.
What are the specifications of 845-6655309 ITEM 20-1?
Key specifications for 845-6655309 ITEM 20-1: Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.375 INCHES IN; Nut Diameter: 0.796 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-356-7215 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.