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PT-1588 — PT-1588

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

PT-1588: PT-1588.

The PT-1588 is a the manufacturer industrial component. Key specifications include overall_width: 0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, overall_height: 0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN, overall_length: 3.250 INCHES NOMINAL IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-048-2258, 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
PT-1588
NSN: 5315-01-048-2258
NIINs: 010482258, 012578982
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 77873 — ROCKFORD POWERTRAIN INC DIV POWERTRAIN ROCKFORD, INC. (USA)
SPECIFICATIONS
overall_width0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
overall_height0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
overall_length3.250 INCHES NOMINAL IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
NSN5315-01-048-2258
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PT-1588 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
OVERALL LENGTH3.250 INCHES NOMINAL IN
OVERALL WIDTH0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
E-734-1Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
E-734-1 PIECE 3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 PT-1588?
PT-1588 is a PT-1588.
What parts can replace PT-1588?
There are 2 known substitutes for PT-1588: E-734-1, E-734-1 PIECE 3. Substitute compatibility should be verified for your specific system.
What is the NSN for PT-1588?
PT-1588 is cataloged in the U.S. Government catalog under NSN 5315-01-048-2258. 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.