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90308A161 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

90308A161: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.188 INCHES NOMINAL IN, material: COPPER ALLOY OVERALL, thread_class: 2A RIGHT INTERNAL A, thread_length: 0.188 INCHES NOMINAL RIGHT INTERNAL IN, style_designator: INTERNALLY THREADED FULL LENGTH, thread_direction: RIGHT-HAND RIGHT INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-587-0809, 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
90308A161
NSN: 5340-01-587-0809
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
length0.188 INCHES NOMINAL IN
materialCOPPER ALLOY OVERALL
thread_class2A RIGHT INTERNAL A
thread_length0.188 INCHES NOMINAL RIGHT INTERNAL IN
style_designatorINTERNALLY THREADED FULL LENGTH
thread_directionRIGHT-HAND RIGHT INTERNAL
surface_treatmentZINC OVERALL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.112 INCHES RIGHT INTERNAL IN
cross-sectional_shapeHEXAGON
thread_quantity_per_inch40 RIGHT INTERNAL
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL
NSN5340-01-587-0809
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90308A161 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: 0.188 INCHES NOMINAL IN
•
THREAD LENGTH: 0.188 INCHES NOMINAL RIGHT INTERNAL IN
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
THREAD DIRECTION: RIGHT-HAND RIGHT INTERNAL
•
NOMINAL THREAD SIZE: 0.112 INCHES RIGHT INTERNAL IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
•
SURFACE TREATMENT: ZINC OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.188 INCHES NOMINAL IN
THREAD LENGTH0.188 INCHES NOMINAL RIGHT INTERNAL IN
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
NOMINAL THREAD SIZE0.112 INCHES RIGHT INTERNAL IN
CROSS-SECTIONAL SHAPEHEXAGON
SURFACE TREATMENTZINC OVERALL
THREAD CLASS2A RIGHT INTERNAL A
THREAD QUANTITY PER INCH40 RIGHT INTERNAL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90308A161?
90308A161 is a STANDOFF,THREADED,SPACING.
What is the NSN for 90308A161?
90308A161 is cataloged in the U.S. Government catalog under NSN 5340-01-587-0809. 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.