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NSN 4220-01-441-3391Government record, cited
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Trousers, Diver's Suit4220-01-441-3391

NSN 4220-01-441-3391 · NIIN 014413391 · Part number RST312-M
Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla · FSC 4220 — Marine Lifesaving and Diving Equipment · FSG 42 — Fire Fighting, Rescue, and Safety Equipment · CAGE 027D0
Government record, cited
NSN 4220-01-441-3391 — this item is cataloged by the U.S. Government under National Stock Number 4220-01-441-3391. Manufacturer of record part number: RST312-M.
Also searched as  4220-01-441-3391 · 4220014413391 · NIIN 014413391 · 01-441-3391 · FSC 4220 Marine Lifesaving and Diving Equipment · CAGE 027D0 · RST312-M · 3462AS104 · 3462AS104-2 · MNPFJ442-1GL-M · US853MB-M
Nearby stock numbers  ·
Features
  • Trousers,diver's Suit — FSC 4220
  • Entrance Location: FRONT
  • Design Type: ONE-PIECE
  • Supplementary Features: SPEC OPS/SAR JUMPSUIT, 5/3MM BACKZIP BLACK MM
  • Attached Cuffs: NOT INCLUDED
  • Size Designation: MEDIUM
  • Leg Lacing Provision: NOT INCLUDED
  • Material: RUBBER CHLOROPRENE CLASS CR
Identification
  • NSN: 4220-01-441-3391
  • NIIN: 014413391
  • FSC: 4220 — Marine Lifesaving and Diving Equipment
  • FSG: 42 — Fire Fighting, Rescue, and Safety Equipment
  • Primary part number: RST312-M
  • Manufacturer: Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
General Description

The Trousers,diver's Suit, cataloged under National Stock Number 4220-01-441-3391, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4220-01-441-3391
Primary Part NumberRST312-M
Item NameTrousers,diver's Suit
FSC / FSG4220 / 42 — Marine Lifesaving and Diving Equipment
ManufacturerAquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
StatusACTIVE
Entrance LocationFRONT
Design TypeONE-PIECE
Supplementary FeaturesSPEC OPS/SAR JUMPSUIT, 5/3MM BACKZIP BLACK MM
Attached CuffsNOT INCLUDED
Size DesignationMEDIUM
Leg Lacing ProvisionNOT INCLUDED
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4220-01-441-3424RST312-ML POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3425RST312-L POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3488RST312-XL POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3495RST312-XXL POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3499US853MB-LT POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Henderson Aquatics Inc
4220-01-441-3502US853MB-XLS POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Henderson Aquatics Inc
4220-01-441-3683WRST312-ML POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3686WRST312-L POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3688WRST312-XL POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
4220-01-441-3691WRST312-XXL POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
Possible match (shared part number)Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla
Cross-Reference Index
Part NumberManufacturer
3462AS104-2 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
RST312-M PRIMARY Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla (USA)
MNPFJ442-1GL-M Harveys Skin Diving Suits Inc (USA)
UST853MB-M PRIMARY Henderson Aquatics Inc (USA)
Reference documents
ReferenceMeaning
3462AS104 D/9 Drawing number reference only
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
US853MB-M 3/9 Design control — primary reference
Henderson Aquatics Inc
Related Parts
4220-01-441-3424POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
RST312-ML
4220-01-441-3425POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
RST312-L
4220-01-441-3488POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
RST312-XL
4220-01-441-3495POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
RST312-XXL
4220-01-441-3499POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
US853MB-LT
4220-01-441-3502POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
US853MB-XLS
4220-01-441-3683POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
WRST312-ML
4220-01-441-3686POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
WRST312-L
4220-01-441-3688POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
WRST312-XL
4220-01-441-3691POSSIBLE MATCH
TROUSERS,DIVER'S SUIT
WRST312-XXL
4220-01-687-2130POSSIBLE MATCH
DIVER'S SUIT
UST853MB-M

Frequently Asked Questions

What is NSN 4220-01-441-3391?

NSN 4220-01-441-3391 is a Trousers,diver's Suit, manufactured by Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.

What part numbers are listed for NSN 4220-01-441-3391?

NSN 4220-01-441-3391 has 4 manufacturer part numbers on file: 3462AS104-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), RST312-M (Aquatic Fabricators of South Florida, Inc. Dba Aquatic Fabricators of South Fla), MNPFJ442-1GL-M (Harveys Skin Diving Suits Inc), UST853MB-M (Henderson Aquatics Inc).

What NSN replaces 4220-01-441-3391?

11 possible matches (shared part number, not a government interchangeability claim): 4220-01-441-3424, 4220-01-441-3425, 4220-01-441-3488. Verify interchangeability with system specifications before substitution.

What are the specifications of RST312-M?

Key specifications for RST312-M: Entrance Location: FRONT; Design Type: ONE-PIECE; Supplementary Features: SPEC OPS/SAR JUMPSUIT, 5/3MM BACKZIP BLACK MM; Attached Cuffs: NOT INCLUDED. 7 specifications are documented in the U.S. Government catalog.

Is NSN 4220-01-441-3391 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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