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B-5953-23 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

B-5953-23: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, overall_width: 0.750 INCHES NOMINAL IN, overall_height: 0.125 INCHES NOMINAL IN, overall_length: 1.812 INCHES NOMINAL IN, style_designator: PLAIN, hazardous_substances: COPPER. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-506-2007, 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
B-5953-23
NSN: 5315-01-506-2007
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 41592 — MORRISON BROTHERS CO DBA MORRISON BROTHERS CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
overall_width0.750 INCHES NOMINAL IN
overall_height0.125 INCHES NOMINAL IN
overall_length1.812 INCHES NOMINAL IN
style_designatorPLAIN
hazardous_substancesCOPPER
supplementary_featuresTEMPER HALF HARD PER QQ-B-626
end_item_identificationFUEL PUMP, 600 GPM (FU604G) 4930-01-392-7579
part_name_assigned_by_controlling_agencyLOWER STEM INSERT 6"T.T.FLANGED GATE VALVE
NSN5315-01-506-2007
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B-5953-23 · 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
•
SUPPLEMENTARY FEATURES: TEMPER HALF HARD PER QQ-B-626
•
STYLE DESIGNATOR: PLAIN
•
HAZARDOUS SUBSTANCES: COPPER
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.125 INCHES NOMINAL IN
SUPPLEMENTARY FEATURESTEMPER HALF HARD PER QQ-B-626
STYLE DESIGNATORPLAIN
OVERALL LENGTH1.812 INCHES NOMINAL IN
OVERALL WIDTH0.750 INCHES NOMINAL IN
HAZARDOUS SUBSTANCESCOPPER
PART NAME ASSIGNED BY CONTROLLING AGENCYLOWER STEM INSERT 6"T.T.FLANGED GATE VALVE
END ITEM IDENTIFICATIONFUEL PUMP, 600 GPM (FU604G) 4930-01-392-7579
MATERIALCOPPER ALLOY 360 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 B-5953-23?
B-5953-23 is a KEY,MACHINE.
What is the NSN for B-5953-23?
B-5953-23 is cataloged in the U.S. Government catalog under NSN 5315-01-506-2007. 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.