Home · FSC 5305 Screws · NSN 5305-01-538-1828
NSN 5305-01-538-1828 — Screw,Close Tolerance
NIIN 01-538-1828 · unit of issue EA · AAC J (not stocked, central procurement) · source of supply SMS
Buying rhythm
from 9 government buys since 2018
The government has bought this item about every 9 months (loose, gaps vary ±89%). Last buy Mar 4, 2025. The gaps are too uneven to put a window on the next one.
How well this works: for loose items, "next buy about one typical gap after the last, give or take 136 days" caught the actual next buy 37% of the time across 35,590 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.
NSN 5305-01-538-1828 is the national stock number for a screw,close tolerance in federal supply class 5305 (Screws). It cross-references to 2 manufacturer part numbers from 2 CAGE codes, including The Boeing Company, Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana; the primary is 110179-3-9ASM. The unit of issue is EA and the FLIS list price is $17.80.
The U.S. government has bought this item 13 times on record, 1 of them in the last 24 months, most recently on March 4, 2025 at $13.36 each from Noble Supply & Logistics, LLC. The median unit price paid over 36 months is $11.80. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.
2
part numbers from 2 CAGEs
0
open solicitations, all agencies
1
government buy in 24 months · median $11.80
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| ST3M430V3-9ASM | 76301 | The Boeing Company | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 110179-3-9ASM | 80539 | Sps Technologies, LLC Dba Aerospace Fasteners Group Div Aerospace - Santa Ana | 5 · Secondary reference | 2 · Fully interchangeable |
Government demand
Nothing open right now. Last government buy Mar 4, 2025. Watch this NSN and we will email you when it is solicited.
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Mar 4, 2025 | Noble Supply & Logistics, LLC 1HEN9 | 2 | $13.36 | Dla | SPE4A525FAB2E | |
| Oct 24, 2023 | Noble Supply & Logistics, LLC 1HEN9 | 10 | $11.80 | Dla | SPE4A624FA7FA | |
| Oct 24, 2023 | Noble Supply & Logistics, LLC 1HEN9 | 30 | $11.80 | Dla | SPE4A624FA7EZ | |
| May 18, 2021 | Defense Support Services, Inc. 1L3U4 | 40 | $22.88 | Dla | SPE4A621V348E | |
| Mar 17, 2021 | Don Industrial Group LLC 745V4 | 28 | $39.96 | Dla | SPE4A621PE227 | |
| Mar 15, 2021 | Don Industrial Group LLC 745V4 | 60 | $39.96 | Dla | SPE4A621PE026 | |
| Jun 29, 2020 | Don Industrial Group LLC 745V4 | 20 | $44.96 | Dla | SPE5E220P1538 | |
| Jun 2, 2020 | Netkomp, Inc. 1P4D9 | 141 | $32.20 | Dla | SPE5E920P1820 | |
| Jun 24, 2019 | Abstract Electronics, Inc. 1VR92 | 9 | $65.00 | Dla | SPE5E219V7533 | |
| Aug 23, 2018 | Boeing Distribution Services Defense LLC 3G1W3 | 20 | $5.00 | Dla | SPE5E218V024U | |
| Jul 10, 2018 | Vc Displays, Inc. 4AGF5 | 3 | $75.00 | Dla | SPE5E218V9318 | |
| Feb 24, 2012 | Boeing Distribution Services X, Inc. 2N935 | 141 | $3.18 | Dla | SPM5A212M1682 | |
| Jul 19, 2011 | Boeing Distribution Services X, Inc. 2N935 | 72 | $3.28 | Dla | SPM5A211M3690 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 13 buys on record in total.
Sellers with confirmed stock
No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 110179-3-9ASM.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $17.80
- Unit of issue
- EA
- Acquisition advice
- J — Not stocked, central procurement
- Source of supply
- SMS
- Effective
- Oct 1, 2025
Item characteristics
- Thread Class
- 3A
- Thread Direction
- RIGHT-HAND
- Thread Length
- INCHES MINIMUM 0.380 AND INCHES MAXIMUM 0.447
- Fastener Length
- INCHES MINIMUM 0.952 AND INCHES MAXIMUM 0.999
- Head Diameter
- INCHES MINIMUM 0.376 AND INCHES MAXIMUM 0.381
- Head Height
- INCHES MINIMUM 0.044 AND INCHES MAXIMUM 0.046
- Grip Diameter
- INCHES NOMINAL 0.189
- Nominal Thread Diameter
- INCHES 0.190
- Grip Length
- INCHES MINIMUM 0.552 AND INCHES MAXIMUM 0.572
- Thread Quantity Per Inch
- 32
- Countersink Angle
- DEGREES NOMINAL 100.0
- Part Name Assigned By Controlling Agency
- SCREW, CLOSE TOLERANCE-ASSEMBLED O-RING
- Special Features
- ST3M430 SERIES BOLTS ARE TO BE USED IN FUEL SEALING APPLICATION. TEMP RANGE -70DEG (F) TO +350DEG (F) GRIP AND THREAD HAVE DRY FILM LUBRICANT PER MIL-L-8937 PLUS CETYL ALCOHOL. SIMILIAR TO BUT NOT THE
- Material
- OVERALL TITANIUM ALLOY UNS R56400
- Material Document And Classification
- OVERALL NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE NAS 621
- Thread Series Designator
- UNIFIED NATIONAL JOINT FINE (UNJF)
About this page
An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.
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