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Technical Data Sheet
PartsTable / COMPONENT / 803-2177525-C1B1AF
803-2177525-C1B1AF ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

HOLDER,ELECTRICAL CONTACT BRUSH. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-145-7360, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
803-2177525-C1B1AF
NSN: 4820-00-145-7360
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN4820-00-145-7360
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-2177525-C1B1AF · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BONNET ATTACHMENT METHOD: BOLTED
•
MATERIAL: STEEL CORROSION RESISTING SEAT
•
FLOW CONTROL DEVICE: DISK
•
BONNET TYPE: OUTSIDE SCREW-YOKE
•
VALVE OPERATION METHOD: MANUAL
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
•
OPERATING PRESSURE: 900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
BONNET ATTACHMENT METHODBOLTED
MATERIALSTEEL CORROSION RESISTING SEAT
FLOW CONTROL DEVICEDISK
BONNET TYPEOUTSIDE SCREW-YOKE
VALVE OPERATION METHODMANUAL
MATERIALSTEEL STEM
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
OPERATING PRESSURE900.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORANGLE
FEATURES PROVIDEDBONNET PACKING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
803-2177525-C121AFInterchangeable
interchangeable cross-reference
interchangeable
803-2177525-C12Interchangeable
interchangeable cross-reference
interchangeable
803-2177525Interchangeable
interchangeable cross-reference
interchangeable
MILV22094Interchangeable
interchangeable cross-reference
interchangeable
803-2177525-C1B1AFInterchangeable
interchangeable cross-reference
interchangeable
803-2177525-C121AFL1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-2177525-C1B1AF?
803-2177525-C1B1AF is a HOLDER,ELECTRICAL CONTACT BRUSH.
What parts can replace 803-2177525-C1B1AF?
There are 7 known substitutes for 803-2177525-C1B1AF: 803-2177525-C121AF, 803-2177525-C12, 803-2177525 and 4 more. Substitute compatibility should be verified for your specific system.
Is 803-2177525-C1B1AF still available?
803-2177525-C1B1AF is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026