NSN 4820-01-062-8759 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-062-8759. Manufacturer of record part number: 803-2177141-4XX-14.
The Cap,valve, cataloged under National Stock Number 4820-01-062-8759, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 12 items share a part number with this NSN in the catalog (possible match — not a government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
4820-01-062-8759
Primary Part Number
803-2177141-4XX-14
Item Name
Cap,valve
FSC / FSG
4820 / 48 — Valves, Nonpowered
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Valve Model Number for Which Designed
BW-900
Valve Size for Which Designed
4.000 INCHES IN
Material
STEEL
Attachment Method
THREADED HOLES
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.
4820-01-087-0016803-2177141-4XX-13POSSIBLE MATCH
YOKE BUSHING,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-091-7503803-2177141-4XX-19POSSIBLE MATCH
ADAPTER,STEM,HANDWHEEL
Possible match (shared part number)Naval Ship Systems Command
4820-01-091-7504803-2177141-45X-82POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-111-4014803-2177141-4XX-33POSSIBLE MATCH
COVER,RETAINER PROTECTOR
Possible match (shared part number)Naval Ship Systems Command
4820-01-112-1283803-2177141-4XX-09POSSIBLE MATCH
BONNET,RETAINER SCREW TORQUE
Possible match (shared part number)Naval Ship Systems Command
4820-01-114-3061803-2177141-4XX-03POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-117-7594803-2177141-3XX-03POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-118-0563803-2177141-312-12POSSIBLE MATCH
FLANGE,GLAND,VALVE
Possible match (shared part number)Naval Ship Systems Command
4820-01-118-1224803-2177141-311POSSIBLE MATCH
VALVE,GLOBE
Possible match (shared part number)Naval Ship Systems Command
4820-01-123-8777803-2177141-3XX-02APOSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Ship Systems Command
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
803-2177141-4XX-14
5/9Secondary reference
U.S. Government activity
803-2177141
D/9Drawing number reference only
Naval Sea Systems Command
Related Parts
4820-01-087-0016POSSIBLE MATCH
YOKE BUSHING,VALVE
803-2177141-4XX-13
4820-01-091-7503POSSIBLE MATCH
ADAPTER,STEM,HANDWHEEL
803-2177141-4XX-19
4820-01-091-7504POSSIBLE MATCH
DISK,VALVE
803-2177141-45X-82
4820-01-111-4014POSSIBLE MATCH
COVER,RETAINER PROTECTOR
803-2177141-4XX-33
4820-01-112-1283POSSIBLE MATCH
BONNET,RETAINER SCREW TORQUE
803-2177141-4XX-09
4820-01-114-3061POSSIBLE MATCH
CAP,VALVE
803-2177141-4XX-03
4820-01-117-7594POSSIBLE MATCH
CAP,VALVE
803-2177141-3XX-03
4820-01-118-0563POSSIBLE MATCH
FLANGE,GLAND,VALVE
803-2177141-312-12
4820-01-118-1224POSSIBLE MATCH
VALVE,GLOBE
803-2177141-311
4820-01-123-8777POSSIBLE MATCH
DISK,VALVE
803-2177141-3XX-02A
4820-01-125-5607POSSIBLE MATCH
DISK,VALVE
803-2177141-3XX-27A
4820-01-146-7042POSSIBLE MATCH
VALVE,GLOBE
803-2177141-412
Frequently Asked Questions
What is NSN 4820-01-062-8759?
NSN 4820-01-062-8759 is a Cap,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
What part numbers are listed for NSN 4820-01-062-8759?
NSN 4820-01-062-8759 has 2 manufacturer part numbers on file: 03-2177141-4XX-14 (C and W Engineering and Mfg Co), 803-2177141-4XX-14 (Naval Sea Systems Command).
What NSN replaces 4820-01-062-8759?
12 possible matches (shared part number, not a government interchangeability claim): 4820-01-087-0016, 4820-01-091-7503, 4820-01-091-7504. Verify interchangeability with system specifications before substitution.
What are the specifications of 803-2177141-4XX-14?
Key specifications for 803-2177141-4XX-14: Valve Model Number for Which Designed: BW-900; Valve Size for Which Designed: 4.000 INCHES IN; Material: STEEL; Attachment Method: THREADED HOLES. 4 specifications are documented in the U.S. Government catalog.
Is NSN 4820-01-062-8759 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.