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Technical Data Sheet
4001255 ✓ 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 NUT,PLAIN,CASTELLATED,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1120 OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.609 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNF, thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-014-9479, 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
4001255
NSN: 5340-00-014-9479
FSC: 5340
CAGE: 05236 — JONATHAN ENGINEERED SOLUTIONS CORP. DBA JONATHAN ENGINEERED SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 1120 OVERALL
nut_styleCASTELLATED, HEXAGON
nut_height0.609 INCHES NOMINAL IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.438 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch20
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5340-00-014-9479
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4001255 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
UNIT TYPE: DOUBLE ACTION
LENGTH: 10.330 INCHES NOMINAL OVERALL IN
CONTROL TYPE: AIR
MATERIAL: STEEL CORROSION RESISTING CASE
MOUNTING TYPE FOR WHICH DESIGNED: SURFACE
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
UNIT TYPEDOUBLE ACTION
LENGTH10.330 INCHES NOMINAL OVERALL IN
CONTROL TYPEAIR
MATERIALSTEEL CORROSION RESISTING CASE
MATERIALSTEEL CORROSION RESISTING ARM
MOUNTING TYPE FOR WHICH DESIGNEDSURFACE
SPECIAL FEATURESPRESS TO RELEASE MECHANISM IN ROD OR USE RELEASE RING AT END OF ROD;HOLDING ANGLE IN DEGS:90;TUBE DIA:0.875 IN. DIA IN
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
400216Upgraded Successor
successor cross-reference
successor
AN6-23Upgraded Successor
successor cross-reference
successor
2994598Upgraded Successor
successor cross-reference
successor
H369Interchangeable
interchangeable cross-reference
interchangeable
4001255Interchangeable
interchangeable cross-reference
interchangeable
1255Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4001255?
4001255 is a NUT,PLAIN,CASTELLATED,HEXAGON.
What parts can replace 4001255?
There are 17 known substitutes for 4001255: 400216, AN6-23, 2994598 and 14 more. Substitute compatibility should be verified for your specific system.
Is 4001255 still available?
4001255 is currently cancelled.
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