PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-2177525-C1B1AFValve,angle

Naval Ship Systems Command · NSN 4820-01-554-0912 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-554-0912 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-554-0912. Primary manufacturer part number: 803-2177525-C1B1AF.
Features
  • Valve,angle — FSC 4820
  • Material: STEEL BODY
  • Valve Size: 0.250 INCHES IN
  • 8 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,angle, cataloged under National Stock Number 4820-01-554-0912, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-554-0912
Primary Part Number803-2177525-C1B1AF
Item NameValve,angle
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusCANCELLED
MaterialSTEEL BODY
Valve Size0.250 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-145-7360 INTERCHANGEABLE
Valve,angle
5977-00-159-2251 INTERCHANGEABLE
Holder,electrical Contact Brush
4820-00-174-2600 INTERCHANGEABLE
Valve,angle
4730-00-256-85860125-SW1RS INTERCHANGEABLE
Flange,pipe
Dansway Incorporated
4820-00-566-1281SW1971-2IN INTERCHANGEABLE
Valve,angle
Flowserve Inc
4820-00-752-9527 INTERCHANGEABLE
Valve,stop-Lift-Check
6105-00-836-2661 INTERCHANGEABLE
Motor,alternating Current
5330-00-928-2411 INTERCHANGEABLE
Seal,plain Encased
4820-01-015-5823 INTERCHANGEABLE
Valve,angle
5360-01-127-028033303 INTERCHANGEABLE
Spring,outer
Huck International, Inc. Div Kingston Operations
Cross-Reference Index
Part NumberManufacturer
803-2177525-C12 Naval Ship Systems Command (USA)
803-2177525 Naval Ship Systems Command (USA)
MILV22094 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
80671-00-114IN CID882003662 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
803-2177525C121 Naval Ship Systems Command (USA)
33303 Velan Valve Corp. (USA)
5530W Hancock-Gross Inc (USA)
803-2177525-C1B1AF PRIMARY Naval Ship Systems Command (USA)
Related Parts
4820-00-145-7360INTERCHANGEABLE
VALVE,ANGLE
5977-00-159-2251INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
4820-00-174-2600INTERCHANGEABLE
VALVE,ANGLE
4730-00-256-8586INTERCHANGEABLE
FLANGE,PIPE
0125-SW1RS
4820-00-566-1281INTERCHANGEABLE
VALVE,ANGLE
SW1971-2IN
4820-00-752-9527INTERCHANGEABLE
VALVE,STOP-LIFT-CHECK
6105-00-836-2661INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5330-00-928-2411INTERCHANGEABLE
SEAL,PLAIN ENCASED
4820-01-015-5823INTERCHANGEABLE
VALVE,ANGLE
5360-01-127-0280INTERCHANGEABLE
SPRING,OUTER
33303
4820-01-237-2796INTERCHANGEABLE
VALVE,ANGLE
SW-1971SS 1.00IN.
4820-01-554-1203INTERCHANGEABLE
VALVE,ANGLE
803-2177525-C4B1AF

Frequently Asked Questions

What is NSN 4820-01-554-0912?

NSN 4820-01-554-0912 is a Valve,angle, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-554-0912?

NSN 4820-01-554-0912 has 8 cross-referenced part numbers: 803-2177525-C12 (Naval Ship Systems Command), 803-2177525 (Naval Ship Systems Command), MILV22094 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 80671-00-114IN CID882003662 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 803-2177525C121 (Naval Ship Systems Command) and 3 more.

What NSN replaces 4820-01-554-0912?

There are 12 known substitutes for 4820-01-554-0912: 4820-00-145-7360, 5977-00-159-2251, 4820-00-174-2600 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-2177525-C1B1AF?

Key specifications for 803-2177525-C1B1AF: Material: STEEL BODY; Part Name Assigned by Controlling Agency: ANGLE STOP WITH BACKSEAT; Valve Size: 0.250 INCHES IN. 3 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-554-0912 still in active supply?

NSN 4820-01-554-0912 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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