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Technical Data Sheet
PartsTable / COMPONENT / 1604-42
1604-42 ✓ 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 SLIDERAIL is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 4.000 INCHES NOMINAL IN, overall_height: 2.000 INCHES NOMINAL IN, overall_length: 12.000 INCHES NOMINAL IN, special_features: QUANTITY IS 2 RAILS; WEIGHT OF EACH IS 8 LBS LBS, end_item_identification: KAB HEAVY DUTY MECHANICAL SUSPENSION SEAT, MODEL 214C/224C; SEAT,CREW. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-200-8637, 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
1604-42
NSN: 5340-00-200-8637
FSC: 5340
CAGE: 97945 — PENNWALT CORP S S WHITE INDUSTRIAL PRODUCTS DIV (USA)
SPECIFICATIONS
materialSTEEL
overall_width4.000 INCHES NOMINAL IN
overall_height2.000 INCHES NOMINAL IN
overall_length12.000 INCHES NOMINAL IN
special_featuresQUANTITY IS 2 RAILS; WEIGHT OF EACH IS 8 LBS LBS
end_item_identificationKAB HEAVY DUTY MECHANICAL SUSPENSION SEAT, MODEL 214C/224C; SEAT,CREW
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencySLIDERAIL KIT
NSN5340-00-200-8637
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1604-42 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
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 3/8-18 NPT
•
DESIGN TYPE: THREADED
•
MATERIAL: PLASTIC
•
DRIVE TYPE: SCREW SLOT OR SERRATED
•
OVERALL DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMRAP BUFFALO MK2A2
THREAD SIZE AND SERIES/TYPE DESIGNATOR3/8-18 NPT
DESIGN TYPETHREADED
MATERIALPLASTIC
DRIVE TYPESCREW SLOT OR SERRATED
OVERALL DIAMETER0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
P42Upgraded Successor
successor cross-reference
successor
7HA953Interchangeable
interchangeable cross-reference
interchangeable
10-44Interchangeable
interchangeable cross-reference
interchangeable
353274Interchangeable
interchangeable cross-reference
interchangeable
10-269Interchangeable
interchangeable cross-reference
interchangeable
61560Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1604-42?
1604-42 is a SLIDERAIL.
What parts can replace 1604-42?
There are 23 known substitutes for 1604-42: P42, 7HA953, 10-44 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1604-42?
1604-42 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-200-8637. 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