PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STS-OS53021Sock,spill Containment,hazardous

Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc · NSN 4235-01-379-8387 · FSC 4235 · Spill Containment Unit,hazardous
Verified by PartsTable
NSN 4235-01-379-8387 — this item is cataloged by the U.S. Government under National Stock Number 4235-01-379-8387. Primary manufacturer part number: STS-OS53021.
Features
  • Sock,spill Containment,hazardous — FSC 4235
  • Functional Description: DESIGNED TO ABSORB OIL BASED LIQUIDS WHILE REPELLING WATER
  • Environmental Attribute Code: COMPREHENSIVE PROCUREMENT GUIDELINE - MISCELLANEOUS PRODUCTS - SORBENTS
  • Overall Diameter: 4.000 INCHES IN
  • Total Recovered Materials Percentage: 100.0
  • 4 verified cross-references
  • Primary manufacturer: Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sock,spill Containment,hazardous, cataloged under National Stock Number 4235-01-379-8387, is classified within Federal Supply Class 4235 (Spill Containment Unit,hazardous) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4235-01-379-8387
Primary Part NumberSTS-OS53021
Item NameSock,spill Containment,hazardous
FSC / FSG4235 / 42 — Spill Containment Unit,hazardous
ManufacturerSafe-Tech Solutions Llc Dba Safe Tech Solutions Llc
StatusCANCELLED
Functional DescriptionDESIGNED TO ABSORB OIL BASED LIQUIDS WHILE REPELLING WATER
Environmental Attribute CodeCOMPREHENSIVE PROCUREMENT GUIDELINE - MISCELLANEOUS PRODUCTS - SORBENTS
Overall Diameter4.000 INCHES IN
Total Recovered Materials Percentage100.0
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2520-00-211-572611534 INTERCHANGEABLE
Cover and Strap Assembly
Sachs-Boge of America
4730-00-264-9163 INTERCHANGEABLE
Coupling,tube
5133-00-266-9462 INTERCHANGEABLE
Drill,twist
5815-00-322-5583SM-B-186983 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3020-00-366-01386931 INTERCHANGEABLE
Gear,internal
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
2520-00-931-2112 INTERCHANGEABLE
Spider,universal Joint,vehicular
5940-00-978-9800 INTERCHANGEABLE
Board Assembly
5365-01-019-299111534-1 INTERCHANGEABLE
Spacer,plate
Crestview Aerospace Llc Div Crestview Aerospace
4940-01-117-905711534 INTERCHANGEABLE
Holder,canopy
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
2530-01-181-7136 INTERCHANGEABLE
Piston,hydraulic Brake
Cross-Reference Index
Part NumberManufacturer
STS-OS53021 Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc (USA)
11534 Hy/tec-Gse, Inc Dba Hy-Tec Environmental Equipment Company (USA)
OS53021 Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc (USA)
53021 Healthy Pet, L.p. Div Industrial (USA)
Related Parts
2520-00-211-5726INTERCHANGEABLE
COVER AND STRAP ASSEMBLY
11534
4730-00-264-9163INTERCHANGEABLE
COUPLING,TUBE
5133-00-266-9462INTERCHANGEABLE
DRILL,TWIST
5815-00-322-5583INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SM-B-186983
3020-00-366-0138INTERCHANGEABLE
GEAR,INTERNAL
6931
2520-00-931-2112INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
5940-00-978-9800INTERCHANGEABLE
BOARD ASSEMBLY
5365-01-019-2991INTERCHANGEABLE
SPACER,PLATE
11534-1
4940-01-117-9057INTERCHANGEABLE
HOLDER,CANOPY
11534
2530-01-181-7136INTERCHANGEABLE
PISTON,HYDRAULIC BRAKE
3433-01-446-0857INTERCHANGEABLE
CUTTING MACHINE,PLASMA ARC
1-2240
6230-01-676-5984INTERCHANGEABLE
FLASHLIGHT
53021

Frequently Asked Questions

What is NSN 4235-01-379-8387?

NSN 4235-01-379-8387 is a Sock,spill Containment,hazardous, manufactured by Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc, classified under FSC 4235 (Spill Containment Unit,hazardous). Status: cancelled.

What are the part numbers for NSN 4235-01-379-8387?

NSN 4235-01-379-8387 has 4 cross-referenced part numbers: STS-OS53021 (Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc), 11534 (Hy/tec-Gse, Inc Dba Hy-Tec Environmental Equipment Company), OS53021 (Safe-Tech Solutions Llc Dba Safe Tech Solutions Llc), 53021 (Healthy Pet, L.p. Div Industrial).

What NSN replaces 4235-01-379-8387?

There are 12 known substitutes for 4235-01-379-8387: 2520-00-211-5726, 4730-00-264-9163, 5133-00-266-9462 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of STS-OS53021?

Key specifications for STS-OS53021: Overall Length: 10.000 FEET FT; Functional Description: DESIGNED TO ABSORB OIL BASED LIQUIDS WHILE REPELLING WATER; Environmental Attribute Code: COMPREHENSIVE PROCUREMENT GUIDELINE - MISCELLANEOUS PRODUCTS - SORBENTS; Overall Diameter: 4.000 INCHES IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4235-01-379-8387 still in active supply?

NSN 4235-01-379-8387 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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