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Technical Data Sheet
AG34B ✓ 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

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.8120 INCHES NOMINAL IN, bore_diameter: 0.4420 INCHES NOMINAL IN, overall_height: 0.1625 INCHES NOMINAL IN, special_features: 30.0 DEG BY 0.625 1N. DIA COUNTERSINK IN BORE OPPOSITE STEP END.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-620-0156, 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
AG34B
NSN: 5340-00-620-0156
FSC: 5340
CAGE: 11568 — GARDNER DENVER INC. (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.8120 INCHES NOMINAL IN
bore_diameter0.4420 INCHES NOMINAL IN
overall_height0.1625 INCHES NOMINAL IN
special_features30.0 DEG BY 0.625 1N. DIA COUNTERSINK IN BORE OPPOSITE STEP END
style_designatorSEAT
first_step_diameter1.0000 INCHES NOMINAL IN
countersink_diameter0.4732 INCHES NOMINAL IN
countersink_angle_in_deg45.0
distance_from_end_to_first_step0.1250 INCHES NOMINAL IN
NSN5340-00-620-0156
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AG34B 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
FIRST STEP DIAMETER: 1.0000 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG: 45.0
DISTANCE FROM END TO FIRST STEP: 0.1250 INCHES NOMINAL IN
COUNTERSINK DIAMETER: 0.4732 INCHES NOMINAL IN
DESIGN TYPE: SOLID
STYLE DESIGNATOR: SEAT
END DIAMETER: 0.8120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST STEP DIAMETER1.0000 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG45.0
DISTANCE FROM END TO FIRST STEP0.1250 INCHES NOMINAL IN
COUNTERSINK DIAMETER0.4732 INCHES NOMINAL IN
DESIGN TYPESOLID
SPECIAL FEATURES30.0 DEG BY 0.625 1N. DIA COUNTERSINK IN BORE OPPOSITE STEP END
STYLE DESIGNATORSEAT
END DIAMETER0.8120 INCHES NOMINAL IN
MATERIALSTEEL
BORE DIAMETER0.4420 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
28047Interchangeable
interchangeable cross-reference
interchangeable
18605Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-19500/383Interchangeable
interchangeable cross-reference
interchangeable
PG510BInterchangeable
interchangeable cross-reference
interchangeable
303FTBInterchangeable
interchangeable cross-reference
interchangeable
4465Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AG34B?
AG34B is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace AG34B?
There are 13 known substitutes for AG34B: 28047, 18605, MIL-PRF-19500/383 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AG34B?
AG34B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-620-0156. This indicates validated use in U.S. government and defense supply chains.
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