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Technical Data Sheet
A-A-156-4 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The CLOSER,DOOR is a the manufacturer industrial component. Key specifications include unit_type: SINGLE ACTION, control_type: LIQUID, special_features: FOR 48-INCH INTERIOR DOOR OR 36-INCH EXTERIOR DOOR, mounting_type_for_which_designed: SURFACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-116-2376, 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
A-A-156-4
NSN: 5340-00-116-2376
FSC: 5340
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
unit_typeSINGLE ACTION
control_typeLIQUID
special_featuresFOR 48-INCH INTERIOR DOOR OR 36-INCH EXTERIOR DOOR
mounting_type_for_which_designedSURFACE
NSN5340-00-116-2376
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-156-4 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MOUNTING TYPE FOR WHICH DESIGNED: SURFACE
UNIT TYPE: SINGLE ACTION
CONTROL TYPE: LIQUID
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING TYPE FOR WHICH DESIGNEDSURFACE
UNIT TYPESINGLE ACTION
CONTROL TYPELIQUID
SPECIAL FEATURESFOR 48-INCH INTERIOR DOOR OR 36-INCH EXTERIOR DOOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
FF-H-121Upgraded Successor
successor cross-reference
successor
BHMA-A156.4 C02012 SIZE 5Upgraded Successor
successor cross-reference
successor
BHMA-A156.4Upgraded Successor
successor cross-reference
successor
BHMA-A156.4 C02012 SIZE 2Upgraded Successor
successor cross-reference
successor
A156.4 TYPE C02 012 SIZE 3Upgraded Successor
successor cross-reference
successor
BHMA-A156.4 C02012 SIZE 3Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-156-4?
A-A-156-4 is a CLOSER,DOOR.
What parts can replace A-A-156-4?
There are 16 known substitutes for A-A-156-4: FF-H-121, BHMA-A156.4 C02012 SIZE 5, BHMA-A156.4 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-156-4?
A-A-156-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-116-2376. This indicates validated use in U.S. government and defense supply chains.
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