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91075A166 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

91075A166: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.994 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING OVERALL, thread_class: 2A RIGHT EXTERNAL A, thread_length: 0.375 INCHES NOMINAL RIGHT EXTERNAL IN, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-680-6095, 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
91075A166
NSN: 5340-01-680-6095
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
length0.994 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
materialSTEEL CORROSION RESISTING OVERALL
thread_class2A RIGHT EXTERNAL A
thread_length0.375 INCHES NOMINAL RIGHT EXTERNAL IN
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
width_across_flats0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
nominal_thread_size0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeHEXAGON
end_item_identification4520-01-564-3917
right_projection_length0.375 INCHES NOMINAL IN
thread_quantity_per_inch32 LEFT INTERNAL (INCLUDES THRU THREAD)
NSN5340-01-680-6095
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 91075A166 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: 0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
•
LENGTH: 0.994 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL RIGHT EXTERNAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.369 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
LENGTH0.994 INCHES MINIMUM AND 1.006 INCHES MAXIMUM IN
THREAD LENGTH0.375 INCHES NOMINAL RIGHT EXTERNAL IN
THREAD LENGTH0.4375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
NOMINAL THREAD SIZE0.164 INCHES RIGHT EXTERNAL IN
CROSS-SECTIONAL SHAPEHEXAGON
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 91075A166?
91075A166 is a STANDOFF,THREADED,SPACING.
What is the NSN for 91075A166?
91075A166 is cataloged in the U.S. Government catalog under NSN 5340-01-680-6095. 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.