PartsTable
Technical Data Sheet

3254/254-PP — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3254/254-PP: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. Key specifications include block_height: 1.46 INCHES NOMINAL1.46 INCHES NOMINAL IN, overall_width: 1.19 INCHES NOMINAL1.19 INCHES NOMINAL IN, overall_length: 2.64 INCHES NOMINAL2.64 INCHES NOMINAL IN, style_designator: RECTANGULAR, mounting_facility: UNTHREADED HOLE(S)UNTHREADED HOLE(S), clamping_hole_diameter: 1.00 INCHES NOMINAL ALL HOLES IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-158-0260, 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
3254/254-PP
NSN: 5340-01-158-0260
NIINs: 011580260, 016715834
FSC: 5340 — Hardware, Commercial
CAGE: 53790 — STAUFF CORP (USA)
SPECIFICATIONS
block_height1.46 INCHES NOMINAL1.46 INCHES NOMINAL IN
overall_width1.19 INCHES NOMINAL1.19 INCHES NOMINAL IN
overall_length2.64 INCHES NOMINAL2.64 INCHES NOMINAL IN
style_designatorRECTANGULAR
mounting_facilityUNTHREADED HOLE(S)UNTHREADED HOLE(S)
clamping_hole_diameter1.00 INCHES NOMINAL ALL HOLES IN
clamping_hole_quantity22
end_item_identification2320-01-652-52082320-01-652-5208
part_name_assigned_by_controlling_agencyCLAMP, TWIN 1.00-1.00
distance_from_center_of_mounting_hole_to_edge_along_the_width0.60 INCHES NOMINAL0.60 INCHES NOMINAL IN
NSN5340-01-158-0260
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3254/254-PP 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
SUBSTITUTES & CROSS-REFERENCES 2
1343840Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
9325C11-1458-04Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 3254/254-PP?
3254/254-PP is a CLAMP,BLOCK.
What parts can replace 3254/254-PP?
There are 2 known substitutes for 3254/254-PP: 1343840, 9325C11-1458-04. Substitute compatibility should be verified for your specific system.
What is the NSN for 3254/254-PP?
3254/254-PP is cataloged in the U.S. Government catalog under NSN 5340-01-158-0260. 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.