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Technical Data Sheet
129998 ✓ 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: 1.270 INCHES NOMINAL IN, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), flange_thickness: 0.030 INCHES NOMINAL IN, style_designator: FLANGED WITH LEFT INTERNAL THREAD, thread_direction: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD), nominal_thread_size: 0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-2184, 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
129998
NSN: 5340-00-090-2184
FSC: 5340
CAGE: 65092 — SOLARTRON ELECTRONICS INC WESTON INSTRUMENTS DIV (USA)
SPECIFICATIONS
length1.270 INCHES NOMINAL IN
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
flange_thickness0.030 INCHES NOMINAL IN
style_designatorFLANGED WITH LEFT INTERNAL THREAD
thread_directionRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
nominal_thread_size0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
thread_quantity_per_inch48 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designatorUNF LEFT INTERNAL (INCLUDES THRU THREAD)
flange_width_across_flats0.281 INCHES NOMINAL IN
NSN5340-00-090-2184
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 129998 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
THREAD SERIES DESIGNATOR: UNF LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD DIRECTION: RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH: 48 LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD CLASS: 2B LEFT INTERNAL (INCLUDES THRU THREAD)
STYLE DESIGNATOR: FLANGED WITH LEFT INTERNAL THREAD
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH48 LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH32 RIGHT EXTERNAL
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
THREAD CLASS2B LEFT INTERNAL (INCLUDES THRU THREAD)
STYLE DESIGNATORFLANGED WITH LEFT INTERNAL THREAD
NOMINAL THREAD SIZE0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
FLANGE THICKNESS0.030 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
0-13146Interchangeable
interchangeable cross-reference
interchangeable
12998Interchangeable
interchangeable cross-reference
interchangeable
240Q1Interchangeable
interchangeable cross-reference
interchangeable
6041H177Interchangeable
interchangeable cross-reference
interchangeable
373290-1Interchangeable
interchangeable cross-reference
interchangeable
163129Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 129998?
129998 is a STANDOFF,THREADED,SPACING.
What parts can replace 129998?
There are 8 known substitutes for 129998: 0-13146, 12998, 240Q1 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 129998?
129998 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-2184. This indicates validated use in U.S. government and defense supply chains.
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