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PartsTable / COMPONENT / GS500K16
GS500K16 ✓ 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 STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.000 INCHES NOMINAL IN, material: COPPER ALLOY 360 OVERALL, style_designator: INTERNALLY THREADED FULL LENGTH, surface_treatment: CADMIUM OVERALL, width_across_flats: 0.250 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-937-0744, 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
GS500K16
NSN: 5340-00-937-0744
FSC: 5340
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
length1.000 INCHES NOMINAL IN
materialCOPPER ALLOY 360 OVERALL
style_designatorINTERNALLY THREADED FULL LENGTH
surface_treatmentCADMIUM OVERALL
width_across_flats0.250 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
specification/standard_data26512-GS500K16 MANUFACTURERS SPECIFICATION
material_document_and_classificationQQ-B-626, COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5340-00-937-0744
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GS500K16 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
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626, COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SPECIFICATION/STANDARD DATA: 26512-GS500K16 MANUFACTURERS SPECIFICATION
•
LENGTH: 1.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 360 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626, COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPEHEXAGON
SPECIFICATION/STANDARD DATA26512-GS500K16 MANUFACTURERS SPECIFICATION
LENGTH1.000 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
1635Upgraded Successor
successor cross-reference
successor
8220-B0632-3BUpgraded Successor
successor cross-reference
successor
3935-11Interchangeable
Same NIIN cross-reference
interchangeable
G247-027-010Interchangeable
Same NIIN cross-reference
interchangeable
350-3935-11-07-00Interchangeable
Same NIIN cross-reference
interchangeable
450113-1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GS500K16?
GS500K16 is a STANDOFF,THREADED,SPACING.
What parts can replace GS500K16?
There are 9 known substitutes for GS500K16: 1635, 8220-B0632-3B, 3935-11 and 6 more. Substitute compatibility should be verified for your specific system.
Is GS500K16 still available?
GS500K16 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026