PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V300-008PCS7,21Washer,lock

Velan Valve Corp. · NSN 5310-01-377-7201 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-377-7201 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-377-7201. Primary manufacturer part number: V300-008PCS7,21.
Features
  • Washer,lock — FSC 5310
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 7 verified cross-references
  • Primary manufacturer: Velan Valve Corp.
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-377-7201, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-377-7201
Primary Part NumberV300-008PCS7,21
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerVelan Valve Corp.
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5310-00-187-2417004-003005-083 INTERCHANGEABLE
Washer,lock
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
4820-01-371-6842 INTERCHANGEABLE
Gear Operator,valve
5310-01-381-2192 INTERCHANGEABLE
Washer,lock
3040-01-417-67259500-310 INTERCHANGEABLE
Hub,body
Velan Valve Corp.
3020-01-417-67309500-306 INTERCHANGEABLE
Gear Set,bevel,matched
Velan Valve Corp.
3020-01-418-47129500-314 INTERCHANGEABLE
Adapter,gear Operator
Velan Valve Corp.
3020-01-418-47249500-315 INTERCHANGEABLE
Adapter,yoke
Velan Valve Corp.
5310-01-444-4603803-7064647-X-21 INTERCHANGEABLE
Washer,lock
Naval Sea Systems Command
5310-01-444-5495 INTERCHANGEABLE
Washer,lock
3120-01-546-37209500-328-088 INTERCHANGEABLE
Bearing,sleeve
Velan Valve Corp.
Cross-Reference Index
Part NumberManufacturer
V300-008PCS7,21 Velan Valve Corp. (USA)
V400-012 Velan Valve Corp. (USA)
MS35338-107 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
V300-008PC20 Velan Valve Corp. (USA)
V300-008PCS7 Velan Valve Corp. (USA)
C300-008PC21 Velan Valve Corp. (USA)
V400-012PC20 Velan Valve Corp. (USA)
Related Parts
5310-00-187-2417INTERCHANGEABLE
WASHER,LOCK
004-003005-083
4820-01-371-6842INTERCHANGEABLE
GEAR OPERATOR,VALVE
5310-01-381-2192INTERCHANGEABLE
WASHER,LOCK
3040-01-417-6725INTERCHANGEABLE
HUB,BODY
9500-310
3020-01-417-6730INTERCHANGEABLE
GEAR SET,BEVEL,MATCHED
9500-306
3020-01-418-4712INTERCHANGEABLE
ADAPTER,GEAR OPERATOR
9500-314
3020-01-418-4724INTERCHANGEABLE
ADAPTER,YOKE
9500-315
5310-01-444-4603INTERCHANGEABLE
WASHER,LOCK
803-7064647-X-21
5310-01-444-5495INTERCHANGEABLE
WASHER,LOCK
3120-01-546-3720INTERCHANGEABLE
BEARING,SLEEVE
9500-328-088

Frequently Asked Questions

What is NSN 5310-01-377-7201?

NSN 5310-01-377-7201 is a Washer,lock, manufactured by Velan Valve Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-377-7201?

NSN 5310-01-377-7201 has 7 cross-referenced part numbers: V300-008PCS7,21 (Velan Valve Corp.), V400-012 (Velan Valve Corp.), MS35338-107 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), V300-008PC20 (Velan Valve Corp.), V300-008PCS7 (Velan Valve Corp.) and 2 more.

What NSN replaces 5310-01-377-7201?

There are 10 known substitutes for 5310-01-377-7201: 5310-00-187-2417, 4820-01-371-6842, 5310-01-381-2192 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of V300-008PCS7,21?

Key specifications for V300-008PCS7,21: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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