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GS500BB04A4F12 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

GS500BB04A4F12: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN, style_designator: INTERNALLY THREADED FULL LENGTH, width_across_flats: 0.250 INCHES NOMINAL IN, cross-sectional_shape: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-216-6974, 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
GS500BB04A4F12
NSN: 5340-01-216-6974
FSC: 5340 — Hardware, Commercial
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
length0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
style_designatorINTERNALLY THREADED FULL LENGTH
width_across_flats0.250 INCHES NOMINAL IN
cross-sectional_shapeSQUARE
NSN5340-01-216-6974
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GS500BB04A4F12 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
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
LENGTH: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
CROSS-SECTIONAL SHAPE: SQUARE
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
CROSS-SECTIONAL SHAPESQUARE
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 2
8278-A-0440-1BReference document
Same NSN cross-reference
Reference document — Secondary reference
1120-S-A-.750-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GS500BB04A4F12?
GS500BB04A4F12 is a STANDOFF,THREADED,SPACING.
What parts can replace GS500BB04A4F12?
There are 2 known substitutes for GS500BB04A4F12: 8278-A-0440-1B, 1120-S-A-.750-3. Substitute compatibility should be verified for your specific system.
What is the NSN for GS500BB04A4F12?
GS500BB04A4F12 is cataloged in the U.S. Government catalog under NSN 5340-01-216-6974. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.