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Technical Data Sheet
PartsTable / COMPONENT / 1958-1
1958-1 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The MICROCIRCUIT,MEMORY is a the manufacturer memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include material: STEEL COMP 1117 NUT, nut_style: HEXAGON, body_width: 0.390 INCHES MAXIMUM IN, nut_height: 1.578 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN, body_height: 0.085 INCHES MAXIMUM IN, body_length: 0.520 INCHES MAXIMUM 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 5310-00-022-3069, 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
1958-1
NSN: 5310-00-022-3069
FSC: 5310
CAGE: 38490 — LIFTKING MANUFACTURING CORP (CAN)
SPECIFICATIONS
materialSTEEL COMP 1117 NUT
nut_styleHEXAGON
body_width0.390 INCHES MAXIMUM IN
nut_height1.578 INCHES MINIMUM AND 1.640 INCHES MAXIMUM IN
body_height0.085 INCHES MAXIMUM IN
body_length0.520 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
features_providedBIPOLAR AND PROGRAMMABLE AND 3-STATE OUTPUT
NSN5310-00-022-3069
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1958-1 · 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
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
•
NOMINAL THREAD SIZE: 1.500 INCHES IN
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
•
BEARING SURFACE TYPE: CHAMFERED
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
SURFACE TREATMENT: ZINC OVERALL EXCEPT INSERT
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHEXAGON
THREAD CLASS3B
NOMINAL THREAD SIZE1.500 INCHES IN
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
SURFACE TREATMENTZINC OVERALL EXCEPT INSERT
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC ALL MATERIAL RESPONSES LOCKING INSERT
MATERIALSTEEL COMP 1117 NUT
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
1958-1Interchangeable
interchangeable cross-reference
interchangeable
7819604-01Interchangeable
interchangeable cross-reference
interchangeable
82S185Interchangeable
interchangeable cross-reference
interchangeable
RY4289-002Interchangeable
interchangeable cross-reference
interchangeable
HM-7685Interchangeable
interchangeable cross-reference
interchangeable
2533408PC37Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1958-1?
1958-1 is a MICROCIRCUIT,MEMORY.
What parts can replace 1958-1?
There are 7 known substitutes for 1958-1: 1958-1, 7819604-01, 82S185 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1958-1?
1958-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-022-3069. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026