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86-847 — RETAINER,DISK,VALVE

✓ Government record, cited
Silverlit · GATE VALVE
PRODUCT OVERVIEW

86-847: RETAINER,DISK,VALVE.

The RETAINER,DISK,VALVE is a Silverlit industrial component. Key specifications include material: NICKEL ALLOY, valve_design_control_activity: 86184, valve_size_for_which_designed: 0.500 INCHES IN, valve_model_number_for_which_designed: 81M-EP VBMNT. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-027-9690, 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
86-847
NSN: 4820-01-027-9690
NIINs: 010279690, 010530882
FSC: 4820 — Valves, Nonpowered
CAGE: 86184 — GRISWOLD INDUSTRIES DBA CLA-VAL CO (USA)
SPECIFICATIONS
materialNICKEL ALLOY
valve_design_control_activity86184
valve_size_for_which_designed0.500 INCHES IN
valve_model_number_for_which_designed81M-EP VBMNT
NSN4820-01-027-9690
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 86-847 · Silverlit ⚠ 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
•
VALVE MODEL NUMBER FOR WHICH DESIGNED: 81M-EP VBMNT
•
VALVE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
VALVE DESIGN CONTROL ACTIVITY: 86184
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
VALVE MODEL NUMBER FOR WHICH DESIGNED81M-EP VBMNT
VALVE SIZE FOR WHICH DESIGNED0.500 INCHES IN
VALVE DESIGN CONTROL ACTIVITY86184
MATERIALNICKEL ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
82146-01 ITEM 10Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 86-847?
86-847 is a RETAINER,DISK,VALVE manufactured by Silverlit.
What parts can replace 86-847?
There is 1 known substitute for 86-847: 82146-01 ITEM 10. Substitute compatibility should be verified for your specific system.
What is the NSN for 86-847?
86-847 is cataloged in the U.S. Government catalog under NSN 4820-01-027-9690. 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.