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Technical Data Sheet
PartsTable / COMPONENT / ANSI A156.2 F81 GRADE 1
ANSI A156.2 F81 GRADE 1 ✓ 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 ANSI A156.2 F81 GRADE 1 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-413-6527, 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
ANSI A156.2 F81 GRADE 1
NSN: 5340-00-413-6527
FSC: 5340
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
Part NumberANSI A156.2 F81 GRADE 1
NSN5340-00-413-6527
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ANSI A156.2 F81 GRADE 1 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
•
NONDEFINITIVE SPEC/STD DATA: 161A-4 TYPE A
•
LOCKING MECHANISM TYPE: PIN TUMBLER
•
KNOB QUANTITY: 2
•
DESIGN TYPE: LATCH BOLT
•
THICKNESS: 2.750 INCHES NOMINAL BACKSET IN
•
BOLT TYPE: REGULAR BEVEL
•
LENGTH: 2.250 INCHES NOMINAL IN
•
WIDTH: 1.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA161A-4 TYPE A
LOCKING MECHANISM TYPEPIN TUMBLER
KNOB QUANTITY2
DESIGN TYPELATCH BOLT
THICKNESS2.750 INCHES NOMINAL BACKSET IN
BOLT TYPEREGULAR BEVEL
LENGTH2.250 INCHES NOMINAL IN
WIDTH1.125 INCHES NOMINAL IN
SPECIAL FEATURESCASE SHAPE:TUBULAR;MATERIAL THICKNESS:1.375 IN.THK IN
OPERATION METHODOUTSIDE KEY AND INSIDE TURN KNOB AND OUTSIDE TURN KNOB LATCH BOLT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
FFH106-160E-4Upgraded Successor
successor cross-reference
successor
FF-H-106Upgraded Successor
successor cross-reference
successor
A55PDPLY28Upgraded Successor
successor cross-reference
successor
B260PUpgraded Successor
successor cross-reference
successor
BR260Upgraded Successor
successor cross-reference
successor
FFH106-161PUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ANSI A156.2 F81 GRADE 1?
ANSI A156.2 F81 GRADE 1 is a ANSI A156.2 F81 GRADE 1.
What parts can replace ANSI A156.2 F81 GRADE 1?
There are 24 known substitutes for ANSI A156.2 F81 GRADE 1: FFH106-160E-4, FF-H-106, A55PDPLY28 and 21 more. Substitute compatibility should be verified for your specific system.
Is ANSI A156.2 F81 GRADE 1 still available?
ANSI A156.2 F81 GRADE 1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026