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25451-80004 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

25451-80004: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING STANDOFF, thread_class: 2B LEFT INTERNAL (INCLUDES THRU THREAD), style_designator: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD, nominal_thread_size: 0.112 INCHES RIGHT EXTERNAL IN, thread_quantity_per_inch: 40 LEFT INTERNAL (INCLUDES THRU THREAD), thread_series_designator: UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-449-3100, 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
25451-80004
NSN: 5340-00-449-3100
FSC: 5340 — Hardware, Commercial
CAGE: K0662 — LEONARDO MW LTD (GBR)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING STANDOFF
thread_class2B LEFT INTERNAL (INCLUDES THRU THREAD)
style_designatorPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
nominal_thread_size0.112 INCHES RIGHT EXTERNAL IN
thread_quantity_per_inch40 LEFT INTERNAL (INCLUDES THRU THREAD)
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
NSN5340-00-449-3100
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 25451-80004 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
•
STYLE DESIGNATOR: PROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
NOMINAL THREAD SIZE: 0.112 INCHES RIGHT EXTERNAL IN
•
THREAD CLASS: 2A RIGHT EXTERNAL A
•
THREAD QUANTITY PER INCH: 40 LEFT INTERNAL (INCLUDES THRU THREAD)
•
MATERIAL: STEEL CORROSION RESISTING STANDOFF
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPROJECTION AND FLANGE LEFT INTERNAL AND RIGHT EXTERNAL THREAD
NOMINAL THREAD SIZE0.112 INCHES RIGHT EXTERNAL IN
NOMINAL THREAD SIZE0.112 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD CLASS2A RIGHT EXTERNAL A
THREAD CLASS2B LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH40 LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD QUANTITY PER INCH40 RIGHT EXTERNAL
MATERIALSTEEL CORROSION RESISTING STANDOFF
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
SUBSTITUTES & CROSS-REFERENCES 7
D110551Reference document
Same NSN cross-reference
Reference document — Secondary reference
150471-01Reference document
Same NSN cross-reference
Reference document — Secondary reference
4000545Reference document
Same NSN cross-reference
Reference document — Secondary reference
105115Reference document
Same NSN cross-reference
Reference document — Secondary reference
11830498Reference document
Same NSN cross-reference
Reference document — Secondary reference
7904208-01Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 25451-80004?
25451-80004 is a STANDOFF,THREADED,SPACING.
What parts can replace 25451-80004?
There are 7 known substitutes for 25451-80004: D110551, 150471-01, 4000545 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25451-80004?
25451-80004 is cataloged in the U.S. Government catalog under NSN 5340-00-449-3100. This indicates validated use in U.S. government and defense supply chains.
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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.