PartsTable
Technical Data Sheet
Download PDF

91115A745 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

91115A745: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 2.500 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, thread_length: 2.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, special_features: OEM IS 35ND4, style_designator: INTERNALLY THREADED FULL LENGTH, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-641-2925, 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
91115A745
NSN: 5340-01-641-2925
FSC: 5340 — Hardware, Commercial
CAGE: 2V507 — MCMASTER-CARR SUPPLY COMPANY (USA)
SPECIFICATIONS
length2.500 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
thread_length2.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
special_featuresOEM IS 35ND4
style_designatorINTERNALLY THREADED FULL LENGTH
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
width_across_flats0.500 INCHES NOMINAL IN
nominal_thread_size0.1900 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
cross-sectional_shapeHEXAGON
end_item_identificationMK 109 MOD 1
thread_quantity_per_inch32 LEFT INTERNAL (INCLUDES THRU THREAD)
part_name_assigned_by_controlling_agencyFEMALE THREADED
NSN5340-01-641-2925
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 91115A745 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: 0.500 INCHES NOMINAL IN
•
LENGTH: 2.500 INCHES NOMINAL IN
•
THREAD LENGTH: 2.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: INTERNALLY THREADED FULL LENGTH
•
THREAD DIRECTION: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
•
NOMINAL THREAD SIZE: 0.1900 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
LENGTH2.500 INCHES NOMINAL IN
THREAD LENGTH2.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
STYLE DESIGNATORINTERNALLY THREADED FULL LENGTH
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
NOMINAL THREAD SIZE0.1900 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
CROSS-SECTIONAL SHAPEHEXAGON
SPECIAL FEATURESOEM IS 35ND4
PART NAME ASSIGNED BY CONTROLLING AGENCYFEMALE THREADED
END ITEM IDENTIFICATIONMK 109 MOD 1
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 1
91115A419Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 91115A745?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 91115A745?
91115A745 is a STANDOFF,THREADED,SPACING.
What parts can replace 91115A745?
There is 1 known substitute for 91115A745: 91115A419. Substitute compatibility should be verified for your specific system.
What is the NSN for 91115A745?
91115A745 is cataloged in the U.S. Government catalog under NSN 5340-01-641-2925. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 91115A745

✓ 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.