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Technical Data Sheet
PartsTable / COMPONENT / 803-2177142-5XX-9A
803-2177142-5XX-9A ✓ 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

The RETAINER,BONNET is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-091-8125, 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
803-2177142-5XX-9A
NSN: 4820-01-091-8125
FSC: 4820
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number803-2177142-5XX-9A
NSN4820-01-091-8125
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-2177142-5XX-9A · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CARBON STEEL PER ASTM-A-515,GRADE 70; RAISED FACE FLANGE TYPE,7.375 IN,5.371 IN. RAISED FACE OD; INTERNALLY THD BORE,4.375 IN.-8,RH,ACME THD SIZE 2G; 6 QTY OFHOLES 4 INTERNALLY THD HOLES 0.62S 0.625 IN.-11,UNC,RH THD SIZE SPACED ON 6.125 IN. BC DIA,2 INTERNALLY THD HOLES 0.750 IN. DEEP,0.625 IN.-11,UNC RH THD SIZE SPACED 6.125 IN. BC DIA; FLAT SEATING SURFACE; PART OF 5 IN. SIZE VALVE G
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCARBON STEEL PER ASTM-A-515,GRADE 70; RAISED FACE FLANGE TYPE,7.375 IN,5.371 IN. RAISED FACE OD; INTERNALLY THD BORE,4.375 IN.-8,RH,ACME THD SIZE 2G; 6 QTY OFHOLES 4 INTERNALLY THD HOLES 0.62S 0.625 IN.-11,UNC,RH THD SIZE SPACED ON 6.125 IN. BC DIA,2 INTERNALLY THD HOLES 0.750 IN. DEEP,0.625 IN.-11,UNC RH THD SIZE SPACED 6.125 IN. BC DIA; FLAT SEATING SURFACE; PART OF 5 IN. SIZE VALVE G
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
803-2177142-51X-02AInterchangeable
interchangeable cross-reference
interchangeable
803-2177142Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-15Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-51X-3AInterchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-12Interchangeable
interchangeable cross-reference
interchangeable
803-2177142-5XX-23Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-2177142-5XX-9A?
803-2177142-5XX-9A is a RETAINER,BONNET.
What parts can replace 803-2177142-5XX-9A?
There are 11 known substitutes for 803-2177142-5XX-9A: 803-2177142-51X-02A, 803-2177142, 803-2177142-5XX-15 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-2177142-5XX-9A?
803-2177142-5XX-9A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-091-8125. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026