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Technical Data Sheet
PartsTable / COMPONENT / NA81
NA81 ✓ 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 BATTERY,NONRECHARGEABLE is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include height: 1.760 INCHES NOMINAL IN, outside_diameter: 4.465 INCHES NOMINAL IN, special_features: ZINC ALLOY, attachment_method: BOLTS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-117-9087, 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
NA81
NSN: 4820-00-117-9087
FSC: 4820
CAGE: 28260 — WASCOMAT OF AMERICA DIV OF BERMIL INDUSTRIES CORP (USA)
SPECIFICATIONS
height1.760 INCHES NOMINAL IN
outside_diameter4.465 INCHES NOMINAL IN
special_featuresZINC ALLOY
attachment_methodBOLTS
NSN4820-00-117-9087
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: NA81 · 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
•
OUTSIDE DIAMETER: 4.465 INCHES NOMINAL IN
•
HEIGHT: 1.760 INCHES NOMINAL IN
•
ATTACHMENT METHOD: BOLTS
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER4.465 INCHES NOMINAL IN
HEIGHT1.760 INCHES NOMINAL IN
ATTACHMENT METHODBOLTS
SPECIAL FEATURESZINC ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
A142Interchangeable
interchangeable cross-reference
interchangeable
278-2109-010Interchangeable
interchangeable cross-reference
interchangeable
32-300Interchangeable
interchangeable cross-reference
interchangeable
LD3041Interchangeable
interchangeable cross-reference
interchangeable
7031680Interchangeable
interchangeable cross-reference
interchangeable
377MEM1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NA81?
NA81 is a BATTERY,NONRECHARGEABLE.
What parts can replace NA81?
There are 21 known substitutes for NA81: A142, 278-2109-010, 32-300 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for NA81?
NA81 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-117-9087. 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