NSN 5340-00-423-3893 · NIIN 004233893 · Part number 16423
Prestolite Electric Inc · FSC 5340 — Hardware, Commercial · FSG 53 — Hardware and Abrasives · CAGE 24975
Government record, cited
NSN 5340-00-423-3893 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-423-3893. Manufacturer of record part number: 16423.
Distance From End to First Step: 0.0620 INCHES NOMINAL IN
Design Type: SOLID
Style Designator: SEAT
Material Document and Classification: SAE 72 ASSN STD SINGLE MATERIAL RESPONSE
Identification
NSN: 5340-00-423-3893
NIIN: 004233893
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
Primary part number: 16423
Manufacturer: Prestolite Electric Inc
General Description
The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-423-3893, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Prestolite Electric Inc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
5340-00-423-3893
Primary Part Number
16423
Item Name
Seat,helical Compression Spring
FSC / FSG
5340 / 53 — Hardware, Commercial
Manufacturer
Prestolite Electric Inc
Status
ACTIVE
First Step Diameter
0.6250 INCHES NOMINAL IN
End Diameter
0.4320 INCHES NOMINAL IN
Second End Diameter
0.4380 INCHES NOMINAL IN
Distance From End to First Step
0.0620 INCHES NOMINAL IN
Design Type
SOLID
Style Designator
SEAT
Material Document and Classification
SAE 72 ASSN STD SINGLE MATERIAL RESPONSE
First Step Length
0.0470 INCHES NOMINAL IN
Surface Treatment
CADMIUM
Bore Diameter
0.3750 INCHES NOMINAL IN
Material
COPPER ALLOY
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5330-00-435-858716-423POSSIBLE MATCH
5330-00-435-8587 · Item name not on file
Possible match (shared part number)Rix Industries
5905-00-880-3702505428-1POSSIBLE MATCH
RESISTOR,VARIABLE,WIRE WOUND,PRE
Possible match (shared part number)Raytheon Company Dba Raytheon
5950-01-012-468016423POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
2930-01-092-864316423POSSIBLE MATCH
PUMP,COOLING SYSTEM,ENGINE
Possible match (shared part number)Westerbeke Corporation
5940-01-241-1058860697-0014POSSIBLE MATCH
POST,BINDING,ELECTRICAL
Possible match (shared part number)Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5330-01-630-018216-423POSSIBLE MATCH
SEAL,PLAIN
Possible match (shared part number)Metrex Valve Corp. Dba Metrex Valve Corp
NSN 5340-00-423-3893 is a Seat,helical Compression Spring, manufactured by Prestolite Electric Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
What part numbers are listed for NSN 5340-00-423-3893?
NSN 5340-00-423-3893 has 1 manufacturer part number on file: 16423 (Prestolite Electric Inc).
What NSN replaces 5340-00-423-3893?
6 possible matches (shared part number, not a government interchangeability claim): 5330-00-435-8587, 5905-00-880-3702, 5950-01-012-4680. Verify interchangeability with system specifications before substitution.
What are the specifications of 16423?
Key specifications for 16423: Overall Height: 0.2190 INCHES NOMINAL IN; First Step Diameter: 0.6250 INCHES NOMINAL IN; End Diameter: 0.4320 INCHES NOMINAL IN; Second End Diameter: 0.4380 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
Is NSN 5340-00-423-3893 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.