General Characteristics Item Description: 3.687 IN. O/A LG; 30 DEGREE CAM ANGLE IN
Identification
NSN: 4820-01-110-7657
NIIN: 011107657
FSC: 4820 — Valves, Nonpowered
FSG: 48 — Valves
General Description
The Cam,valve, cataloged under National Stock Number 4820-01-110-7657, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-110-7657
Item Name
Cam,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Status
ACTIVE
General Characteristics Item Description
3.687 IN. O/A LG; 30 DEGREE CAM ANGLE 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 Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-114-46002640-809X24 ITEM 27POSSIBLE MATCH
CAM,CONTROL
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-114-6670845-4687577 ITEM 39POSSIBLE MATCH
CAM,CONTROL
Possible match (shared part number)Naval Ship Systems Command
3040-01-130-86322640-809X24 ITEM 7POSSIBLE MATCH
CAM,CONTROL
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
5315-01-478-85332640-809X24 PC 25POSSIBLE MATCH
PIN,TAPERED,THREADED
Possible match (shared part number)Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
2640-809X24 ITEM 17
3/2Design control — primary reference
U.S. Government activity
2640-809X24
D/9Drawing number reference only
U.S. Government activity
845-4687727 ITEM 20
5/2Secondary reference
U.S. Government activity
Related Parts
3040-01-114-4600POSSIBLE MATCH
CAM,CONTROL
2640-809X24 ITEM 27
3040-01-114-6670POSSIBLE MATCH
CAM,CONTROL
845-4687577 ITEM 39
3040-01-130-8632POSSIBLE MATCH
CAM,CONTROL
2640-809X24 ITEM 7
5315-01-478-8533POSSIBLE MATCH
PIN,TAPERED,THREADED
2640-809X24 PC 25
Frequently Asked Questions
What is NSN 4820-01-110-7657?
NSN 4820-01-110-7657 is a Cam,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
What NSN replaces 4820-01-110-7657?
4 possible matches (shared part number, not a government interchangeability claim): 3040-01-114-4600, 3040-01-114-6670, 3040-01-130-8632. Verify interchangeability with system specifications before substitution.
What are the specifications of 4820-01-110-7657?
Key specifications for 4820-01-110-7657: General Characteristics Item Description: 3.687 IN. O/A LG; 30 DEGREE CAM ANGLE IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4820-01-110-7657 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.