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Technical Data Sheet
81598-1 ✓ 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 BRACKET,DOUBLE ANGLE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, style_designator: ADJACENT ANGLES, features_provided: NUT, end_item_identification: TANK LO STO X CNDN, material_document_and_classification: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-213-0776, 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
81598-1
NSN: 5340-01-213-0776
FSC: 5340
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
materialSTEEL COMP 302
style_designatorADJACENT ANGLES
features_providedNUT
end_item_identificationTANK LO STO X CNDN
material_document_and_classificationQQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-213-0776
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 81598-1 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
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF NUT SST 18-8 PER MIL-N-25027; BRACKET SST 302 PER QQ-S-766; U-BOLT SST 304 PER QQ-S-763
CRITICALITY CODE JUSTIFICATION: ZZZY
TECHNICAL CHARACTERISTICS (FLIS)
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF NUT SST 18-8 PER MIL-N-25027; BRACKET SST 302 PER QQ-S-766; U-BOLT SST 304 PER QQ-S-763
CRITICALITY CODE JUSTIFICATIONZZZY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
81598Interchangeable
interchangeable cross-reference
interchangeable
81598-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81598-1?
81598-1 is a BRACKET,DOUBLE ANGLE.
What parts can replace 81598-1?
There are 2 known substitutes for 81598-1: 81598, 81598-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 81598-1?
81598-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-213-0776. This indicates validated use in U.S. government and defense supply chains.
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