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27531 — COVER,INSTRUMENT PA

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

27531: COVER,INSTRUMENT PA.

The COVER,INSTRUMENT PA is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_direction: RIGHT-HAND, end_item_identification: BOAT, RIGID INFLATABLE 11 METER, 11MRB0421, part_name_assigned_by_controlling_agency: PORTABLE PUMP KIT BAG. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-529-4717, 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
27531
NSN: 4820-00-529-4717
NIINs: 005294717, 005733419, 006527177, 015380946, 015484708, 015488828, 015899721
FSC: 4820 — Valves, Nonpowered
CAGE: 81982 — HYDRO-AIRE AEROSPACE CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_directionRIGHT-HAND
end_item_identificationBOAT, RIGID INFLATABLE 11 METER, 11MRB0421
part_name_assigned_by_controlling_agencyPORTABLE PUMP KIT BAG
NSN4820-00-529-4717
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 27531 · 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
SUBSTITUTES & CROSS-REFERENCES 5
HP367100Reference document
Same NSN cross-reference
Reference document — Secondary reference
4820PL0797849Reference document
Same NSN cross-reference
Reference document — Informative reference only
695111Reference document
Same NSN cross-reference
Reference document — Secondary reference
LAC695111-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
102939Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 27531?
27531 is a COVER,INSTRUMENT PA.
What parts can replace 27531?
There are 5 known substitutes for 27531: HP367100, 4820PL0797849, 695111 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 27531?
27531 is cataloged in the U.S. Government catalog under NSN 4820-00-529-4717. 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.