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803-4384431PC61 — GEAR SET,SPUR,INTERNAL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

803-4384431PC61: GEAR SET,SPUR,INTERNAL.

The GEAR SET,SPUR,INTERNAL is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-00-545-3810, 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
803-4384431PC61
NSN: 4820-00-545-3810
FSC: 4820 — Valves, Nonpowered
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
general_characteristics_item_descriptionBRASS,QQ-B-637,COMP 1; 3.625 IN. LG; 1.250 IN. W ACROSS HEX FLATS; ONE END W/THD OPENING,0.750-10-UNC-2B; THD 1.000 IN. DEPTH IN
NSN4820-00-545-3810
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 803-4384431PC61 · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,QQ-B-637,COMP 1; 3.625 IN. LG; 1.250 IN. W ACROSS HEX FLATS; ONE END W/THD OPENING,0.750-10-UNC-2B; THD 1.000 IN. DEPTH IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,QQ-B-637,COMP 1; 3.625 IN. LG; 1.250 IN. W ACROSS HEX FLATS; ONE END W/THD OPENING,0.750-10-UNC-2B; THD 1.000 IN. DEPTH IN
SUBSTITUTES & CROSS-REFERENCES 4
810-4384431-TA-Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
810-4384431-A-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
810-4384431Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
803-4384431-TA-Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 803-4384431PC61?
803-4384431PC61 is a GEAR SET,SPUR,INTERNAL.
What parts can replace 803-4384431PC61?
There are 4 known substitutes for 803-4384431PC61: 810-4384431-TA-, 810-4384431-A-6, 810-4384431 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-4384431PC61?
803-4384431PC61 is cataloged in the U.S. Government catalog under NSN 4820-00-545-3810. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.