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4996D — SCREW,MACHINE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4996D: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FILLISTER, head_height: 0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.250 INCHES NOMINAL IN, hole_diameter: 0.062 INCHES NOMINAL IN, thread_length: 0.375 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-297-9859, 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
4996D
NSN: 5331-00-297-9859
NIINs: 002979859, 005311539
FSC: 5331 — O-ring
CAGE: 71871 — ALFA LAVAL INC (USA)
SPECIFICATIONS
head_styleFILLISTER
head_height0.218 INCHES MINIMUM AND 0.228 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.250 INCHES NOMINAL IN
hole_diameter0.062 INCHES NOMINAL IN
hole_quantity2
thread_length0.375 INCHES MAXIMUM IN
screw_materialSTEEL COMP 1213
fastener_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.164 INCHES IN
NSN5331-00-297-9859
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4996D 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
•
CROSS-SECTIONAL HEIGHT: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.188 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 1
5330-223-17Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4996D?
4996D is a SCREW,MACHINE.
What parts can replace 4996D?
There is 1 known substitute for 4996D: 5330-223-17. Substitute compatibility should be verified for your specific system.
What is the NSN for 4996D?
4996D is cataloged in the U.S. Government catalog under NSN 5331-00-297-9859. This indicates validated use in U.S. government and defense supply chains.
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