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4025J — SHIELD,EXPANSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4025J: SHIELD,EXPANSION.

The SHIELD,EXPANSION is a the manufacturer industrial component. Key specifications include material: ZINC ALLOY, insert_size: 3/8-16 THD, overall_length: 1.250 INCHES NOMINAL IN, style_designator: SINGLE EXPANSION MACHINE SCREW, thread_provision: THREADED, features_provided: INSTALLATION SETTING TOOL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-684-9479, 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
4025J
NSN: 5340-00-684-9479
FSC: 5340 — Hardware, Commercial
CAGE: 78206 — STAR EXPANSION CO (USA)
SPECIFICATIONS
materialZINC ALLOY
insert_size3/8-16 THD
unit_quantity1
overall_length1.250 INCHES NOMINAL IN
style_designatorSINGLE EXPANSION MACHINE SCREW
thread_provisionTHREADED
features_providedINSTALLATION SETTING TOOL
safe_operating_load_rating450.0 POUNDS NOMINAL LBS
hole_accommodation_diameter0.750 INCHES NOMINAL IN
insert_type_for_which_designedMACHINE SCREW
NSN5340-00-684-9479
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4025J 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 PROVISION: THREADED
•
HOLE ACCOMMODATION DIAMETER: 0.750 INCHES NOMINAL IN
•
INSERT SIZE: 3/8-16 THD
•
STYLE DESIGNATOR: SINGLE EXPANSION MACHINE SCREW
•
FEATURES PROVIDED: INSTALLATION SETTING TOOL
•
INSERT TYPE FOR WHICH DESIGNED: MACHINE SCREW
•
SAFE OPERATING LOAD RATING: 450.0 POUNDS NOMINAL LBS
TECHNICAL CHARACTERISTICS
THREAD PROVISIONTHREADED
HOLE ACCOMMODATION DIAMETER0.750 INCHES NOMINAL IN
INSERT SIZE3/8-16 THD
STYLE DESIGNATORSINGLE EXPANSION MACHINE SCREW
OVERALL LENGTH1.250 INCHES NOMINAL IN
FEATURES PROVIDEDINSTALLATION SETTING TOOL
INSERT TYPE FOR WHICH DESIGNEDMACHINE SCREW
SAFE OPERATING LOAD RATING450.0 POUNDS NOMINAL LBS
MATERIALZINC ALLOY
UNIT QUANTITY1
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4025J?
4025J is a SHIELD,EXPANSION.
What is the NSN for 4025J?
4025J is cataloged in the U.S. Government catalog under NSN 5340-00-684-9479. This indicates validated use in U.S. government and defense supply chains.
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