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57976 — ADAPTER-PLUG,SEALING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

57976: ADAPTER-PLUG,SEALING.

The ADAPTER-PLUG,SEALING is a the manufacturer industrial component. Key specifications include special_features: UNTHREADED EXTERNALLY, functional_description: BLOCKS OIL PASSAGE TO OIL SELECTOR VALVE FOR CLUTCHLESS ENG CONFIG, end_item_identification: R1830-90D ACFT ENG, reference_data_and_literature: AF TO. 2R-1830-4.

This part is cataloged in the U.S. Government catalog under NSN 5340-00-448-6874, 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
57976
NSN: 5340-00-448-6874
FSC: 5340 — Hardware, Commercial
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
special_featuresUNTHREADED EXTERNALLY
functional_descriptionBLOCKS OIL PASSAGE TO OIL SELECTOR VALVE FOR CLUTCHLESS ENG CONFIG
end_item_identificationR1830-90D ACFT ENG
reference_data_and_literatureAF TO. 2R-1830-4
general_characteristics_item_descriptionO/A LG 2.125 IN.; OD 0.3285 IN.; CORNERS ROUNDED APPROX 0.031 IN.; MATL AMS 4120 AL; TAP DRILLED 0.875 IN. DEEP; TAP NO. 10-24 N.C.-2 0.750 DEEP BOTH ENDS IN
NSN5340-00-448-6874
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 57976 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: O/A LG 2.125 IN.; OD 0.3285 IN.; CORNERS ROUNDED APPROX 0.031 IN.; MATL AMS 4120 AL; TAP DRILLED 0.875 IN. DEEP; TAP NO. 10-24 N.C.-2 0.750 DEEP BOTH ENDS IN
•
REFERENCE DATA AND LITERATURE: AF TO. 2R-1830-4
•
FUNCTIONAL DESCRIPTION: BLOCKS OIL PASSAGE TO OIL SELECTOR VALVE FOR CLUTCHLESS ENG CONFIG
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONO/A LG 2.125 IN.; OD 0.3285 IN.; CORNERS ROUNDED APPROX 0.031 IN.; MATL AMS 4120 AL; TAP DRILLED 0.875 IN. DEEP; TAP NO. 10-24 N.C.-2 0.750 DEEP BOTH ENDS IN
REFERENCE DATA AND LITERATUREAF TO. 2R-1830-4
SPECIAL FEATURESUNTHREADED EXTERNALLY
FUNCTIONAL DESCRIPTIONBLOCKS OIL PASSAGE TO OIL SELECTOR VALVE FOR CLUTCHLESS ENG CONFIG
END ITEM IDENTIFICATIONR1830-90D ACFT ENG
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 57976?
57976 is a ADAPTER-PLUG,SEALING.
What is the NSN for 57976?
57976 is cataloged in the U.S. Government catalog under NSN 5340-00-448-6874. This indicates validated use in U.S. government and defense supply chains.
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