NSN 4810-01-063-3881 — this item is cataloged by the U.S. Government under National Stock Number 4810-01-063-3881. Manufacturer of record part number: 515-4674129 ITEM 17.
The Guide,valve Stem, cataloged under National Stock Number 4810-01-063-3881, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government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
4810-01-063-3881
Primary Part Number
515-4674129 ITEM 17
Item Name
Guide,valve Stem
FSC / FSG
4810 / 48 — Valves, Powered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Aa End Chamfer Angle in Deg
45.0
Aa End Chamfer Length
0.115 INCHES NOMINAL IN
Style Designator
PLAIN
Bore Counterbore
NOT INCLUDED
Outside Diameter
3.487 INCHES NOMINAL IN
Bb End Chamfer Length
0.115 INCHES NOMINAL IN
Bb End Chamfer Angle in Deg
45.0
Bore Diameter
1.4930 INCHES NOMINAL IN
Material
PLASTIC ACETAL
Bore Countersink
NOT INCLUDED
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 Items9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4710-01-103-415687552-0621 ITEM 3POSSIBLE MATCH
TUBE,METALLIC
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4710-01-103-602587552-0621 ITEM 1POSSIBLE MATCH
TUBE,METALLIC
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-125-981287552-0621 ITEM 8POSSIBLE MATCH
SLEEVE,COMPENSATING,VALVE
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
4820-01-137-2617515-4674129 ITEM 7POSSIBLE MATCH
SLEEVE COMPENSATING
Possible match (shared part number)Naval Ship Systems Command
4820-01-137-4630515-4674129 ITEM 9POSSIBLE MATCH
ROD,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-146-5922515-4674129 ITEM 11POSSIBLE MATCH
BAR,VALVE
Possible match (shared part number)Naval Ship Systems Command
4710-01-191-6221515-4674129-0005POSSIBLE MATCH
TUBE ASSEMBLY,METAL
Possible match (shared part number)Naval Ship Systems Command
5365-01-717-80978541929-8POSSIBLE MATCH
SPACER,SLEEVE
Possible match (shared part number)Naval Sea Systems Command
5365-01-720-7722ERH443-0106A58-6POSSIBLE MATCH
BUSHING,NONMETALLIC
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
NSN 4810-01-063-3881 is a Guide,valve Stem, manufactured by Naval Sea Systems Command, classified under FSC 4810, Valves, Powered. Status: active.
What part numbers are listed for NSN 4810-01-063-3881?
NSN 4810-01-063-3881 has 1 manufacturer part number on file: 515-4674129 ITEM 17 (Naval Sea Systems Command).
What NSN replaces 4810-01-063-3881?
9 possible matches (shared part number, not a government interchangeability claim): 4710-01-103-4156, 4710-01-103-6025, 4820-01-125-9812. Verify interchangeability with system specifications before substitution.
What are the specifications of 515-4674129 ITEM 17?
Key specifications for 515-4674129 ITEM 17: Aa End Chamfer Angle in Deg: 45.0; Aa End Chamfer Length: 0.115 INCHES NOMINAL IN; Style Designator: PLAIN; Overall Length: 4.000 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4810-01-063-3881 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.