PartsTable
Technical Data Sheet

HT1-5/16 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HT1-5/16: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-270-0749, 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
HT1-5/16
NSN: 5310-01-270-0749
NIINs: 012700749, 014150656, 015922103
FSC: 5310 — Nuts and Washers
CAGE: 52374 — FLOWSERVE CORP DBA AUTOMAX ACTUATORS DIV FLOWSERVE US COMPANY (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5310-01-270-0749
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HT1-5/16 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
SUBSTITUTES & CROSS-REFERENCES 6
10UNCTD HIGH COLLARReference document
Same NSN cross-reference
Reference document — Secondary reference
01-435-0212-5PC107Reference document
Same NSN cross-reference
Reference document — Secondary reference
01-435-0212-5 PC113Reference document
Same NSN cross-reference
Reference document — Secondary reference
01-435-0146-5PC113Reference document
Same NSN cross-reference
Reference document — Secondary reference
5/16UNCTDHIGHCOLLARReference document
Same NSN cross-reference
Reference document — Secondary reference
HT1-10UNCOATEDReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT1-5/16?
HT1-5/16 is a WASHER,LOCK.
What parts can replace HT1-5/16?
There are 6 known substitutes for HT1-5/16: 10UNCTD HIGH COLLAR, 01-435-0212-5PC107, 01-435-0212-5 PC113 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HT1-5/16?
HT1-5/16 is cataloged in the U.S. Government catalog under NSN 5310-01-270-0749. 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.