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6503-86 PIECE 135 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6503-86 PIECE 135: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_length: 12.812 INCHES NOMINAL IN, stem_actuating_end_type: THREADED EXTERNALLY. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-236-1271, 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
6503-86 PIECE 135
NSN: 4820-01-236-1271
FSC: 4820 — Valves, Nonpowered
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL
overall_length12.812 INCHES NOMINAL IN
stem_actuating_end_typeTHREADED EXTERNALLY
NSN4820-01-236-1271
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6503-86 PIECE 135 · 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
•
STEM ACTUATING END TYPE: THREADED EXTERNALLY
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
STEM ACTUATING END TYPETHREADED EXTERNALLY
OVERALL LENGTH12.812 INCHES NOMINAL IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 3
6503-86Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6503-116Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
6503-116 PIECE 135Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6503-86 PIECE 135?
6503-86 PIECE 135 is a STEM,FLUID VALVE.
What parts can replace 6503-86 PIECE 135?
There are 3 known substitutes for 6503-86 PIECE 135: 6503-86, 6503-116, 6503-116 PIECE 135. Substitute compatibility should be verified for your specific system.
What is the NSN for 6503-86 PIECE 135?
6503-86 PIECE 135 is cataloged in the U.S. Government catalog under NSN 4820-01-236-1271. 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.